Why do people like rude and loud people just because they are outgoing and fun?

I find it so weird that people automatically like somebody just because they are outgoing and confident, even if they are rude and insulting. The super nice way to describe them would be blunt, but there are so many rude people who don't care that they are being mean or hurt others, yet people still flock to them to be best friends. I'm not talking about people in highschool, but the people that are in college and continue through their life the same way. On the other hand, quiet and timid people are just totally ignored or seen as second priority. I know really quiet people and they always say that people think they're snotty because they don't say anything. I'm in between the two "extremes" I guess so I've seen things that happened on both sides. And just to clarify i'm not generalizing every outgoing person to be rude or every quiet person to have no self esteemed, i'm just talking about people that I am around.