This is probably a weird thing to worry about because eldest is still only a teenager.
Sometimes though, I read threads on here or when I think about my parents and pil, I wonder what kind of grandparent I would be.
The thing is that I have no interest in babies but of course I loved and looked after my own. I would not want to have a baby or toddler now though. Older children are fab but again, only my own.
My own parents have never been very involved grandparents, my mum is to my dc but doesn't go out of her way.
My mil loves babies and can talk forever about babies, but seemed to lose all interest after about age 4. Seems to be a common theme. When my nieces and nephews have been born people seemed to assume I'd want to spend ages holding and cuddling them but I'm actually thinking I hope they don't be sick on me.