Kids that age shouldn’t just be able to use a computer unsupervised or have free access to a computer/console like that. Screentime is a thing and its important.

There is no indication that’s it’s free unlimited access. I don’t get how it being unsupervised is related to screen time.

I’d happily throw minecraft on a phone to a kid in the back seat of the car. I can’t see what they are doing, but I know that minecraft not on a public server has very little content inappropriate for a 5 year old, and what little there is doesn’t come up if you have peaceful mode on.