
I think once those numbers get past three you immediately start spread yourself thin. I was parentified with my younger brother (eldest daughter ) and my parents struggled to make things equal between three children. One in elementary and the others in Hs/college. And let me tell you it has caused so many issues in my house.
I also bet his parents didn’t show up for much of those events. A lot of times parents will show much more attention to the youngest because “awww this is the last time we’ll be able to watch a kindergarten recital” which yes it’s important to the littles but is shows that there’s no fair option to either child