So anyway, I know a number of families where the older ones WERE expected to/made to wait on the family hand and foot, and look after the younger kids (especially pre 1980s) and some other large families where this didn't happen. I mean, they were asked to contribute with chores a bit, but it wasn't THAT bad...
Also, most of the big families I know/have known (I am talking 5 or more kids,) are almost ALL really close as adults now, and all have loads of nieces and nephews. (Often between 12 and 20...) So there is a big family circle........
Lots of people I know (all my age 40-55 ish) who have 4 to 6 siblings, and 10 to 20 nieces and nephews, have a great social life, because they are SO many family members, and at LEAST once a month there is some kind of celebration or family party or meal out.
A few of them have complained about the cost, and feeling like they are always chasing their tail, but it's great (in many ways,) that they have SO many family members.
Not everyone in a big family is going to get on really well, and there are sometimes one or two siblings that don't get on with the rest, and I have heard some people say they felt 'left out' as the 3rd/4th/5th child of 6 or 7 kids....... But by and large, I think long-term, a big family can be a good thing....... ....... As I feel there is almost always someone to turn to/rely on.