I’m sure there are other factors too, but this is a big one for sure.
Just looking at my family, both my parents had a stay at home mom and 3 siblings. Me and all my cousins have at most 1 sibling, with both our parents working but we always had two grandmas that could watch us if needed.
Had I kept the same timetable as my parents, my hypothetical kids would have had not just both parents working full time, but all grandparents too!
I’m sure there are other factors too, but this is a big one for sure.
Just looking at my family, both my parents had a stay at home mom and 3 siblings. Me and all my cousins have at most 1 sibling, with both our parents working but we always had two grandmas that could watch us if needed.
Had I kept the same timetable as my parents, my hypothetical kids would have had not just both parents working full time, but all grandparents too!