Yep. I was 58 when my kid graduated HS. My dad was also 58 when I graduated HS
My college GF has a 30 yr old son. Great kid and she’s happy but I def wouldn’t trade what I was doing in my 20s (and 30s) for that. Plus was def more in dad space skill wise but def more tired. One of my cousins had both his kids before he was 20. And he’s a grandpa now. Fuck that shit.