Haven't read the comments yet but will find it interesting!
I was born in the 90's and growing up while I knew lots of people with one or 2 kids, being one of 4 was really common too and I am the youngest of 4 myself.
It seemed a perfectly reasonable number of kids especially as I grew up on a council type estate where most of the houses were 3 story, 3 bed houses.
I don't know if I am just much worse off as an individual than the people I grew up around, whether it was pure naivete on my part, or if the expectations and pressures are different these days, but having 4 kids seems an insurmountable burden to me, for the average family.
To be fair, my judgement is heavily clouded by the fact that I have 2 early primary aged children and one pre-schooler, absolutely everything parenting related feels insurmountable right now 😂
If I had more resources, I sometimes wonder if I would have another, but I genuinely think that it's not just a practical resource question, but also one of physical presence and time. My DD has just started brownies, 2 of them have swimming on Saturdays and DS wants to now join scouts. In a couple of years the youngest will also be doing swimming and probably in a second hobby. Where would the fourth one fit in?!
Light hearted of course as kids don't need those things and I'm sure that people who want big families are different from me, better organised and less easily overwhelmed.
All I know is after my third (who was a surprise bonus baby), all of my previously very strong broodiness disappeared and I'm finally at a point where I am not thinking about little babies, tiny hands to hold, etc. There's a real sadness to that, but not in a "I wish things were different" way or an "I really want another but can't" way, just a bittersweet acknowledgement that that much awaited chapter of my life is over, I'm no longer in the pregnancy and baby years.
Sorry this ended up being a complete ramble! Bottom line is 4 would be too much for me 😆