My mum was 50 when her first grandchild was born and dad 52.But they were 71 and 73 when DD was born, but there granchildrens ages range from 25 for the oldest to almost 2 1/2 with my boys.

That's because my older brother was born when my mum was 24 (almost 25) and my sister when she was 28. I didn't arrive until my mum was 36 and then I had my first when I was 36 - so based on DD following the same path I will be in my 70's before I become a grandmother.

MIL was 66 and FIL 67 (on the day) when DD was born. My kids are the only grandchildren they have and even though they are younger than my parents (who are now 75 & 77) they act some much older when it comes to participating with the kids where my mum and dad will happily look after all mine at once - which is no mean feat dealing with an almost 4yr old and two 2 1/2 yr olds.