Why do you play chess even though you're not good at it?

Grow up

This is a great game with an ancient history. Very well develops memory, mind and stress resistance!

He's not the best workers, nor at married or even a good father, yet he still doing it, because we human love to try and perfect it

To get better at chess.

In some cases they cannot afford the time to practice or study but could if they had the time etc.
,so they are just slower.