Because when you're little you're easily manipulated to believe in certain things. When you grow older these views can change because you begin to learn on your own without someone telling you what is right and wrong. Its not that hard.
the justin bieber videos were literally from like 4 years ago, the nash grier vine was from april. i dont think justin bieber is a racist, i do think nash grier is ignorant and homophobic.
I think you can change and grow as a person though, I was telling that same /joke/ Justin did when I was a very young teenager. I'd never say something like that now and I now know it's wrong
I don't think just because I said it years ago means that I still have the same ignorant views I have now
Definitely not defending Nash Grier (or Justin for that matter) though, it was like, less than a year ago or something?
When you're young, there's a part of the brain that isn't fully developed and that's why younger people tend to be stupid and act stupid, because their brain literally isn't completely developed yet.