Speaking when I was a child, I'm not sure if I consider myself addicted to gaming but my parents were never really bothered by it. Sometimes my brother or dad complained that I occupied the computer for to long, back then it was unusual to have more then 1 computer in the house (though my dad uses a Mac these days). This was back when I played WC3 for a long time before WoW even came out, but when WoW came out I often got myself to raid to late into the night which did upset my parents. It wasn't easy to just leave my raid as I was often the main tank, and there was always a huge shortage of other tanks.
Nowadays pretty much everyone I know plays a reasonable amount of games, I play a lot less then I used to and I have yet to hear anyone call me out on my hobby. Most of my relatives play simply mobile games like Candy Crush and some word puzzles, though I rather stick with PC games.