I can’t swim. I had lessons and nearly got it when I was young, but just never cracked it.
I’ve survived till the age of 55, so that’s good going.
Yep I could drown one day as a result of not knowing how to swim. I accept this.
I CAN drive. I think I’m far more likely to come a cropper driving a car tbh.
I avoid swimming pools. Even if I could swim, I would avoid swimming pools due to them being revolting germ ridden manky things.
I don’t generally get myself into a situation where swimming is essential. I live in the East Midlands so the nearest sea is Skegness and I don’t feel compelled to go to Skegness. 
Yes I know there could be a tsunami one day and my not being able to swim would be a major issue. Also if I was in a situation like the Poseidon Adventure or Titanic, swimming would definitely help.
My mum couldn’t swim either and she lived till she was 89.
My DDs both learned, just in case anyone is worried I passed on my apathy for swimming - I thought they might enjoy it. They did for a bit but are now interested in other stuff.