I have the quest 2 and love it. I personally don't see many drawbacks to it. You can spend a shit ton on games, but I don't, and I don't think you need to. I really like the fact that it's dual purpose, so it can be stand alone or tethered. If the PC isn't up to the task he can still play stand alone until he can upgrade his video card. I have an older 1070ti and it does just fine. The only thing I do with it tethered is iRacing, everything else is stand alone. I was curious about watching 3d movies, so I picked up the Avatar 3D version and converted it to run on the headset. The process wasn't terrible, and it does work pretty well. When you guys are traveling he could download movies onto the headset and sit in the back seat and zone out. I don't know if he is someone who would get into VR chat, but I'm not sure that would be a super good idea. I've heard it can be pretty fun, but I've also heard it can get pretty raunchy and sometimes downright nasty.