Could a person stay single their entire lives and never date or marry?

I know a number of older people who have done so

As I am living proof... yes, one can.

Sure. My uncle did it. He was perfectly happy.

Why not?

I might end up that way.

Very common

Yes they can

Easy if you don't want one

Yes. This is not news.

Yeah, you can.
You can also drive a car with your feet.
Doesn't mean it's a good idea.

yeah just be the person nobody is willing to lower their standards for.

Yes