Because I was born to 
Honestly there are different reasons why. The main one would be simply to have fun, but also to relax and kill time, or maybe just to live an experience, like how you would consume other cultural media. It's good not to overthink things but I believe it may be beneficial to ask oneself why you're playing, as in the recent years I've noticed many times I just play out of habit without really having fun or getting anything out of it.

Honestly there are different reasons why. The main one would be simply to have fun, but also to relax and kill time, or maybe just to live an experience, like how you would consume other cultural media. It's good not to overthink things but I believe it may be beneficial to ask oneself why you're playing, as in the recent years I've noticed many times I just play out of habit without really having fun or getting anything out of it.