I did get screwed out of teen love/sex up to my early 20's. By mid/late 20's I started to play catch up.
For guys at least, easy to go 10 up to 15 years younger when in your mid 30's. Women will probably be the ones to have missed out since they usually go for older and not sure when guys drives start to slow down but combined those age differences, feel bad for them if missed out.
A tip for those who are getting out single older than 25.......if you mainly followed the WT rules, you were very repressed and on the dating scene likely have the development of a 14/15 year old, meaning will be very clingy, easily attached, etc. Date a lot, and if not in a committed relationship, even date multiple at a time, just to catch up and learn to keep it cool and how those not in a super strict and conservative religion date.
As for college, started in 30's, so have a good 10+ year delay, but catching up.
Lifelong friendships screwed out on for sure. Childhood things missed out on as well, but if I have children, then I'll live the holidays/birthdays/etc through them.
I am now living my life as if this is it. Not wasting as much time and treasure family moments more. Even though my father is out, he still has beliefs of after/new life I think, and since I am not sure, I want to do things more with him than vice versa it seems.
Joining groups, singles groups, active groups that go out and do things is how I've been making new friends and contacts.