Why do people avoid getting better at the game?

[Jojoya]

Would be a lot easier if people would stop playing games they suck at.

Then people would never bother playing games.
You're going to suck for a while before you learn enough to get good. If players are not allowed to ever be bad, they'd have to quit before they got the experience they need to get good.

So I'll flip the reverse at you - it would be a lot easier if people who have bloated expectations regarding other players' skill would stop playing games intended as much for novice players as for veteran players.