People still say that about Nintendo? Man, that takes me back to about 10-15 years ago. My guess is that most of the people who say that are male teens to very young adults because most people around those ages are trying to get away from things they perceive to be childish. They haven't learned to look past the surface on such things sometimes.

It's kind of the same thing with Disney. When the same people were kids they'd dig their movies or whatever, but when they hit the teens...

"Psh, this is SOOO GAY! Even though I am going to puberty/barley finished I know that a REAL MAN doesn't like stuff like this!"

Flash forward a few years later....

"Oh, wait. This is fun and is supposed to appeal to more than kids. Yeah, this is fun again!"

Not every dude acts this way, but I see that sort of thing happen a lot across all types of media.