when DPS players realize DPS role is not for them ?

like cmon i know everybody love playing DPS because it's the most fun role

it's the role who have so many playable heroes

but if you're very suck even after many hours of playing maybe DPS is not for you and they will never realize that they're not DPS material player

i still wonder why they never even tried tank or Support maybe they can become very good tank or Support player like cmon Overwatch is not just DPSwatch it's Overwatch a hero shooter who have so many diverse gameplay and roles not just DPS