I think with the older generation those without children often didn't choose that. I know we've had the pill since the 60s but when I was younger it was more of a decision to delay children and not so common to decide not to have them.
I had no desire to have children until my late 30s when it was a case of now or never. I had no interest in babies or children ( still don't). But my own were the best thing ever.
I do wonder if the same might be true for others who decide at a young age that they won't have children.
Remember The 1976 Minister for Drought?
You must be old if you have a purse or a wallet.
What medical conditions seem more common now than when you were growing up?
The staff of course can be relplaced, two a penny, "I'll just go next door" is always at the fore in the cat brain. Never mind despite of their fickle nature, still love them.