Learning drifting means learning more car control so I think every sim racer should give it a go, it can only improve your driving overall. I don't personally have much interest in it outside of doing it for fun. I've always seen it as a novelty sport, I understand through experience it requires a lot of skill but it's sport where a judge decides if you've won or not. For some reason that just doesn't interest me, I like the straight forward nature of an ordinary race where you just have to be first across the line.