I think it’s lifestyle. If you hang out with your friends more than your parents as a kid that’s more a GenX thing for example. If you feel like GenX then you are. I’m 1963 and not a boomer but realize I’m not like young GenXers. That cusp Generation Jones may fit. Just never heard of it before

I'm not a great fan of generational discourse in general, tbh. Usually the age ranges are too long and it rarely makes allowance for how different individual circumstances are within a cohort. I was a late bloomer. Gen Jones or early GenX work for me, but definitely not Boomer.