I very clearly remember a comment made to me by my mother when I was 15 (I am almost 59 now). It was "Don't you EVER ask me to look after any children of yours."
It was so very emphatically said that I can remember the comment itself without remembering at all what conversation led up to it. At least I knew where I would stand though - to expect nothing and regard anything I did get as a bonus.
My parents largely stuck by that mantra, though just to be totally fair, did provide very occasional emergency childcare when I was in hospital or something like that (two births of younger children and once a few years later for emergency surgery). Other than that it was a visit a couple of times a year if that but otherwise nothing. The same thing applied to my younger sister.
As a result, my parents' six grandchildren all grew up barely knowing them, which all of them have commented on or asked about on occasions.
My parents were very much those who just wanted to be in their own bubble once my sister and I had left home. Fair enough, we wouldn't ever have wanted them to be default childcarers but we would have liked something more than the all but "disinterest" that we actually got.
My Dad died several years ago now and my mother is on her own at 90. I do wonder now whether she now quietly regrets the way things were allowed to be. My sister and I visit her as often as we can because she is on her own (has carers). She seems more interested in us and her grandchildren now that she is alone than while they were growing up. Which is nice, but I find it a little bit sad that it didn't happen much earlier in their lives.
As someone said earlier in the thread, surely there must be a balance somewhere?? I definitely hope to strike it better than my parents did if I am ever fortunate enough to become a grandparent, though none of my adult children are showing much inclination to have children of their own yet and that's fine too.
I don't want to be a full time childcarer again, but I do want to know my grandchildren and see them as regularly as possible. I will also provide care in an emergency without moaning about it or guilt tripping.