B. What determines succession and inheritance?
C. What types of marriages and sexual relationships are required, encouraged, allowed, and prohibited?
D. What are the patterns of childcare? Which member of the household cares for the children in what ways?
E. What is the division of labor among gender and generational lines within the household?
Midh answers below:
Spoiler:
A
The family among the Midh are divided into two primary levels: The Clan, and the House. Members of a House all share a common dwelling and live together in a large building. This building will often be multipurpose, having different areas for the various trades practiced by the house members in addition to living areas. The larger Clan deals with the organization of all the houses together for mutual support.
Females always stay within the same House for life, but males are married out to a different clan when they come of age.
B
To understand this, first you must understand a fact about draconic biology in my conworld. Dragons in my conworld do not have children one at a time, but instead lay several eggs at once in a clutch. Among social dragons, several sisters will lay a collective clutch together. All born from a single collective clutch make up a Brood. Brothers and sisters from the same Brood are treated as a sort of package deal. Succession is not from Single Mother to Single Daughter but instead from Mother Brood to Daughter Brood.
Those who inherit positions of power within the clan or as the head of the House share such a position with their brood-sisters. A Midh's youngest brood has inheritance rights (ultimogeniture), due to a peculiar bit of reasoning. As they see it, parents get better at raising children over time, so they will do a better job with the broods that come later than those that come before. So the youngest brood will be the one in the best position to handle their inheritance responsibly.
C
As broods are treated as single packages, marriages among Midh are technically group marriages. All the males from one brood are married to all the females of another brood. In the case of an insufficient number of males, multiple broods of males can be married to a single brood of females, but a male brood can never be married to multiple females.
The husband-brood of a given sisterhood is normally that of one of the father's sister's brood. If that doesn't make any sense, lemme break it down:
Brood A grows to maturity and sends the males to Brood B. Brood A gets husbands from somewhere else and raises Brood C. Brood B raises Brood D. Brood C then sends their males to Brood D, and the cycle starts all over again.
Due to Midh biology there's no real requirement for anyone within the group marriage to stay strictly within the group. Social dragon females aren't capable of conceiving most of the time, and only do so in a synchronized fashion with their sisters so that all the eggs of a clutch are laid and hatched at once. However, it is absolutely paramount for husbands to conceive with their wives. Having a child outside the marriage is considered by Midh even worse than our society considers it to be, for the simple reason that it's impossible for this to happen accidentally. There's no excuse for it.
D
Although children are raised collectively, Midh do keep track of which chick belongs to which mother of the brood (In fact, the egg takes a distinct pattern, and the newly hatched distinct pheromones, specifically for this purpose). The direct mother has a more distanced relationship with the child, while the role of education and discipline is carried out by her sisters instead. This is not without good consequence though: Because a mother never has to discipline her own children, her role is limited to playing, cuddling, and all-around spoiling. The mother does all the fun parts while her sisters take care of the dirty work.
E
Males within the House do the menial, exhausting, and boring physical labors which need to be done, while females are restricted to childcare, the arts, and scholarship. Females do not start work until they are fully grown, while males join their fathers and uncles earlier in helping around the house with labor like cleaning and hunting.
The family among the Midh are divided into two primary levels: The Clan, and the House. Members of a House all share a common dwelling and live together in a large building. This building will often be multipurpose, having different areas for the various trades practiced by the house members in addition to living areas. The larger Clan deals with the organization of all the houses together for mutual support.
Females always stay within the same House for life, but males are married out to a different clan when they come of age.
B
To understand this, first you must understand a fact about draconic biology in my conworld. Dragons in my conworld do not have children one at a time, but instead lay several eggs at once in a clutch. Among social dragons, several sisters will lay a collective clutch together. All born from a single collective clutch make up a Brood. Brothers and sisters from the same Brood are treated as a sort of package deal. Succession is not from Single Mother to Single Daughter but instead from Mother Brood to Daughter Brood.
Those who inherit positions of power within the clan or as the head of the House share such a position with their brood-sisters. A Midh's youngest brood has inheritance rights (ultimogeniture), due to a peculiar bit of reasoning. As they see it, parents get better at raising children over time, so they will do a better job with the broods that come later than those that come before. So the youngest brood will be the one in the best position to handle their inheritance responsibly.
C
As broods are treated as single packages, marriages among Midh are technically group marriages. All the males from one brood are married to all the females of another brood. In the case of an insufficient number of males, multiple broods of males can be married to a single brood of females, but a male brood can never be married to multiple females.
The husband-brood of a given sisterhood is normally that of one of the father's sister's brood. If that doesn't make any sense, lemme break it down:
Brood A grows to maturity and sends the males to Brood B. Brood A gets husbands from somewhere else and raises Brood C. Brood B raises Brood D. Brood C then sends their males to Brood D, and the cycle starts all over again.
Due to Midh biology there's no real requirement for anyone within the group marriage to stay strictly within the group. Social dragon females aren't capable of conceiving most of the time, and only do so in a synchronized fashion with their sisters so that all the eggs of a clutch are laid and hatched at once. However, it is absolutely paramount for husbands to conceive with their wives. Having a child outside the marriage is considered by Midh even worse than our society considers it to be, for the simple reason that it's impossible for this to happen accidentally. There's no excuse for it.
D
Although children are raised collectively, Midh do keep track of which chick belongs to which mother of the brood (In fact, the egg takes a distinct pattern, and the newly hatched distinct pheromones, specifically for this purpose). The direct mother has a more distanced relationship with the child, while the role of education and discipline is carried out by her sisters instead. This is not without good consequence though: Because a mother never has to discipline her own children, her role is limited to playing, cuddling, and all-around spoiling. The mother does all the fun parts while her sisters take care of the dirty work.
E
Males within the House do the menial, exhausting, and boring physical labors which need to be done, while females are restricted to childcare, the arts, and scholarship. Females do not start work until they are fully grown, while males join their fathers and uncles earlier in helping around the house with labor like cleaning and hunting.
:zho: 
:eus: 
Literary Makurungou, 
