Our 4yo son gets zero device time although he does watch a bit more TV then we would like. I have read quite a few things emphasising the importance of kids learning to deal with boredom and also the concerns around the potential future consequences of getting children addicted to endorphins at an early age. That and I see no advantage to it at his age. I would like to get him a Lego Boost set so he can be introduced to coding but I don’t think the benefits outweigh the problems for him at this stage.