Kids will be kids.... some people grow up in their teens, some in their 20's, some people honestly never do.  Its easy to curse like a sailor and use racial slurs, because its "cool", but the more you realize that its just dumbing down your language and affecting your thought-processes, the less you use it.  After a while, its just boring. 

Still say the F word a lot but I'm using it less and less as time goes by.  The less you say something, the more importance it has when you actually say it..