Note this is my opinion Why do people ship Sonic stuff alot like Sonic x Amy when sonic doesn't cinta amy atau Tails x Sonic when there best friends atau Shaow x sonic atau sonic x silver atau Shadow x shrek I don't get it Sorry if I offended anyone
I guess it's to entertain ourselves of the possibility of what would happen if two characters fell in love. I guess it's a curiosity thing, to see how different personalities would react to being in a relationship.
I am a fan of a few (conflicting) shippings (ShadAmy and SonAmy for example), but I don't take it too seriously. However, I don't understand why yaoi/yuri is so widespread when a lot of people don't like it atau don't feel comfortable with seeing their fave characters portrayed in that way.