Yeah, I think most people are either more likely to own multiple consoles nowadays so there are less "camps" so to speak. Also, people acknowledge the strength of each library. For Nintendo and Sony it's the first party games with Nintendo focusing more on more family friendly experiences and...
Not really at school. Though at home my older brother has always favored Playstation, but I wouldn't say we really had any arguments about what console to play on. He just likes to rub it in that Playstation is the best way to play lol.