Why do Pit Bulls have a bad reputation
Because of attacks which were highly publicized. Also, their owners never seem to understand the concept of personal space and keeping their animals under control.
Because the breed was originally used for baiting/killing bulls in large pits for "sport" long ago. They have a bad reputation as a result.
Idk but I'm scared of them
I work in an ER and most dog attacks are by pit bulls. It's in their nature. Of course there are a lot of counter examples out there based on how they are raised.
They have had a lot of bad publicity of attacking people so now everyone is scared of them. Well, a lot of people.
Because when they attack they don't let go unless you kill them
Because it is very muscular and it was bred to be a fighting dog because of abusive owners. But truthfully they are the sweetest dogs ever