Keep in mind that there is a colossal difference between a screen that boots into a basic interpreter (BBC/Atari/Amiga style) and a screen that boots into iOS/android/youtube/bubblepop-whatever-the-current-attention-grabby-brain-dead-game-of-the-moment-is

If my kid is interested in the former I would not stop them, because it's an effective tool to learn about thinking, just like other toys... but the later I'm essentially treating as soft drugs, they ain't using that shit until they are an adult.