Yah I think there’s something to that. There’s this age delta in dating that’s a huge exaggerated deal if someone dates another a year or two older/younger in age cohort schools. There’s almost this disbelief and shock from the peers when they witnessed this narrow age gap being crossed. I used to always attribute the shock to the larger percent differences in age that are calculated in the younger years where a year relative to 10 or 14 is a much larger percentage of one’s age than at 26 or 35 and beyond. Come to think about it yah what was that shock all about and I think I agree that it probably has carried over in weird baggage into the adult age ranges. There’s like a weird mental adjustment upon first finding out about age differences in a given couple from split second shock and disbelief to like “oh yah that’s not that far apart anymore”. The problem with the age cohort model is that all people are assumed to develop at the same rate uniformly. That’s probably not true.