I agree JJ. My DF was 40 when I was born, my DM 25, but she died at 69 after being disabled for years. My DF lived to 96 and was able to see DD1 married (but not divorced!). He was also able to visit DD2 daily for many months, following her life/changing illness. I was
28 and 32 when my DDs were born and DH’s parents only wanted to see them on their terms - not often!
Both DDs weren’t bothered about having children and DH and I became used to that - it was their choice. They favoured houses, cars and holidays instead. We were amazed when DD1 announced a pregnancy at 38 and DD2 a few years later, also when she was 38.
DH was able to enjoy a few years with DGS1, but sadly died 3 months before DGS2 arrived.
I’m 73 now and my DGSs are 7 and 3 and I will continue to see them as much as I can, for as long as I’m able. I’d like to think I’ll still be around to see DGS2 learn to drive, but who knows what’s round the corner?