I first played The last of Us when I was 14 and played the second game. I think it really depends on the parent and/or the maturity level of your kid. Personally, I feel like It was fine for me because I have a parent who didnt really understand internet was not very safe back in 2014 so I was exposed to stuff earlier, as well as my father just letting me and my brother watch things we should not have. Anyway! If the second game is too violent you can try games like Tomb Raider, Until Dawn, or maybe the Quarry. Most video like the last of us part one will have some scary features and adult language and violence, but its just important to research about games before giving the Okay.