My son is currently 10 so I think it’s perfectly fine for all TV and gaming to be done downstairs for now, we have kitchen/diner/family open plan room and also a separate lounge and this is where DS currently plays his games console and watches shouty YouTubers. So we can keep an eye on him but equally he can have his own space. It means we don’t have to have his friends upstairs when they come over and we have half an idea what they are doing.
I don’t want TVs in bedrooms because I think it’s really easy to fall into bad habits re bedtime, I.e. falling asleep to the tv day in day out. Plus at his age, getting DS to switch the TV off and go to sleep would be a constant battle.
DH and I haven’t had a TV in our bedroom since we moved to this house when DS was a baby. We have a small TV that we bring out if someone is poorly so they can stay in bed and watch TV, but its not a permanent feature so we are practicing what we preach.
We are about to do DS’s bedroom, as it’s a bit babyish for him now, and he needs a desk for homework etc. He wants a TV and console in his room, DH thinks he is ‘old enough’ but I say no way. Still too young and as we have a space he can socialise in downstairs, I can’t see why he ever needs these things upstairs.