It’s sad that people are waiting so long to have kids to the point that their parents can’t participate anymore in being active grandparents.
I'm in my early/mid 40s now; if I'd had kids in my early 20s I suppose they'd be college-age now, and I'd just be getting back to a more-or-less child-free social life. (Granted, that would depend on all my friends also having done the same thing.)
But I don't have kids at all, and, frankly, I don't have the energy to do much of the stuff I did 10 years ago. If I'd spent the last ~20 years raising kids I imagine I'd have even less energy than I do now.
But at the same time I can't imagine having a newborn now, or even in the past 5 years or so. That sounds beyond exhausting, and I'm not sure I'd be able to do it.
Of the people in this age range that I know, the more well-off they are the more likely they are currently married and having kids. Those that aren't well-off are not enjoying a lifestyle because they can't afford that either.
Within my circles, especially my girl friends, are having one child around mid-30s as they don’t want to give up on their careers. Even worse to be completely depended on their partners as that gives them less choices in life. Cannot blame them, it’s easy for me to want a child, but imagining to go through 3 pregnancies (basically to increase the population) in their 20s is giving up on everything that everyone else gets to do at that age.
One day you will lose your biological faculties and then some day soon after you will die. Caveat emptor, and plan accordingly.
It gets better by the time they’re 2-3 and can walk, but of course other childcare options become more available at that point as well.
All their ideas about how to bring up children are completely outdated by modern standards, so it's just constant fighting over how things should be done, so we don't even bother getting them involved.