Not everybody is suited to playing every type of hero. I, for instance, am horrible at Tanks, no matter which one it is. I’m a sub-par offense player, and the only defense I’m any good at is Hanzo and Junkrat, but I’d never take those into Comp with my poor skills.
Support is more my game. But even if I can play every Support, you want me barred from Competitive? lol okay