I do not come from a big family, i had one brother who was 8 yrs younger than me, and my childhood was miserable, no attention at all,didn't get on with my brother, it hink its down to parenting not how many there are of you. You either want to spend time with your kids or you don't.
I have 6 children and it is amazing, but i do enjoy being at home with the kids and my husband is very supportive. They all get on really well (90 per cent of the time) they are also home educated so i think that removes a lot of the stress from it, i dont have to do all the faffing about in the mornings,picking them up,listening to them saying they dont like school and so and so isn't their friend any more, no homework, Holidays when we feel like it....sorry rambling on now.
Anyway, i think it just depends on the circumstances.You need patience,you need to be laid back, and you need to enjoy being around children, and you also need to have enough money, or to at least know how to get by without needing much anyway.
I would like to have 1 or 2 more,when my youngest is around 4,she is 1 now.