When I had said hen nights in my earlier post, yeah most of my own friends are past that stage too, however in the last decade there was 2 that got married in their early 40s and 1 who re married at 50, their hen weekends were actually more a eating at nice restaurants and shopping without kids pulling out of us, while we're all at different stages with the ages of our children, it's nice to be able to relax with friends and not worry about kids. I also had nieces and friends children who got married, while their hens were more activities based, it was lovely to catch up with everyone.
Mine are older teens and early 20s and I have a severely disabled 14 year old, so going away for weekends during the year with my friends is important to me. It gives me a little respite and I can truly relax. Same with my friends, they mostly work so having some down time from the routines at home refreshes everyone.
Visiting family is also done as a family but I also visit alone to my siblings who live abroad, it's not a case of having more money, it's the opposite, if we were to travel as a family the whole time it would cost a fortune for 7 of us, whereas me visiting my sister in Amsterdam or my sister in Scotland, or my brother in Germany I can catch up with them properly and have some quality time with them, same with dh, he has siblings abroad and does the same, he can go play golf and have a few drinks in Portugal with his brother and not have to worry about kids or me. He also plays for a golf club that involves tournaments in different Countries. There's not a hope I'd go to them with all my kids. I did pre kids and when we had one and it wasn't fun.
There's no right or wrong, it's what works for each person. While your health prevents you from doing night time stuff you get to catch up with friends and family during the day which works for you.