[NathanR]

What it means, is that YOU won't have GRANDCHILDREN. If you don't care, that is fine, but many people do, especially later in life, when there are no longer any options.

[luckystarmom]

My brother was the one of my siblings who got married the youngest and had kids the youngest. He had kids in his early twenties. However, he won't be a granddad because he died of cancer.

My parents had me when they were in their 30s, and they're still alive enjoying my kids.

Having kids early does not mean you'll be a grandparent.