Let's first get this out of the way. Do not fancy over Lee Sin. He is just an overpowered champ who people can play and be proud of for some reason. Avoid playing him if you really wanna play LoL.
I am of Chinese decent, and before year 5 I had never touched any video games and before year 9 I was never really allowed to play much games beyond like an hour or 2 per week. Even things like anime is something I really got into some time during my mid teens.
While I was also quite pissed that I wasn't allowed to touch video games and many other entertainment materials, I think it's in the end more or less beneficial as long as your parents don't go overboard and ban out almost any form of digital entertainment (I was at least allowed to watch movies with them, but not alone) like my parents did.
Seeing that you're still in year 7, I would suggest you to not play too much games, if possible, play as less as you can. The reason for that is rather simple, once you get older you would start to know games as a form of entertainment or if you're really into it, a form of expression/art; but never the life itself which many who started gaming at a very young age tend to get confused with.
I think most parents who do not allow their young kids on games are merely trying to convey that perspective, which is indeed a very solid point, but they often fail at the execution unfortunately.
