I am 37 and I can't swim. Main reason for this is that I never learnt at school, despite 10yrs in the shallow end trying (its no fun learning with 6-7yr olds when you are 14) I ended up loathing trying to learn and, after one experience when I nearly drowned in a swimming pool (I had to be rescued), feared it.
I am quite happy I can't swim but my wife loves swimming so I'd like to try again so we can go to the beach or a pool and do something together.
Before you say "jump in a deep enough pool and you'll naturally swim on instinct" I would like to point out that is how I nearly died, when a teacher thought that might work (starting to swim from the deep end of a pool). So I know that doesn't work, and the feeling of coming up for the last time still haunts me over 20yrs later.
Just typing and thinking about getting in a swimming pool fills me with dread, so be kind! I think I'll be ok to go through it but I wonder if anyone else has any experiences like mine.