Started out on my Dad’s Atari 2600, and other than PvE WoW and a couple odd games, I never bothered with multiplayer as most apparently know it. The few times I set my flag to PvP in WoW taught me all I needed to know about it.
I was the opposite. I started playing wow not realizing there were different servers and just joined the one my buddy was on...when I got to the pvp point I realized that I couldn't attack the horde players and was like "wtf is this shit?" And rerolled onto a pvp server. Lol