[RobinL]

My son (5) gets 5 minutes screen time if he does reading practice. In practice he sometimes up to 10. He's allowed this up to about three times a day if he wants

He is allowed to play reading and maths games, but only when I'm sitting with him.

We also occasionally allow him 5-10 mins of games (aquarium, colouring in) simply for our convenience such as when dining in restaurants (a rarity since 2 little kids is not conducive to eating out.

With all that said, I think the screen time itself is less important than what they're doing and with who. E.g. the worst form is things like unrestricted access to ad-infested YouTube, the best is sitting with your kid talking about an app or an interesting video