Alright just wondering what everyone thinks makes wrestler wrestle rough?

There are a lot of things that come to mind like -

coaching- maybe the coach teaches rough play
winning at all cost- pressure and having to win
personality- just rough person in life

I know from time to time I got physical with another wrestler but only after he was rough or dirty with me. I have seen a lot of kids that wrestler to intimidate their opponent. I think it might be a good move as some wrestlers are just afraid of getting hurt- personally- the rougher a kid got with me the more relaxed I was in the match. They usually didn't have the skilled moves just tried to out physical me.