Mine do (age 7 and 8) and a Sky box in there (easiest way to get a decent picture where the furniture is in there. They watch it on a weekend morning for a while while they're playing, occasionally the eldest will go up there for some space from their sister for a bit. We got it at the start of lockdown so that there was somewhere else to go for space if one or the other needed it as they share a room.
I won't allow iPads etc upstairs as they're still learning their way around socially navigating the internet - I'd rather have just something producing a TV signal up there. It's never even occurred to them to try to watch it at bedtimes or anything to be honest!