I agree with this pretty much, though a good posture is often not really present with using a computer either. Still better than the hunched posture, but you should pay attention to the ergonomics then of how your children are sitting (not slouching) in front of the computer.

It does kind of fascinate me how children today are so used to technology. My youngest relative is almost two years old, but he can find "youtube" on the iPad and can click on the peppa pig videos that he likes to watch. Or when he is in the mood for another app that tells stories, he can click on that.

Maybe I just hugely underestimate children, but it did surprise me that he can find the apps he wants.

I hope that when raising my own children, I can give them a broader picture of computing in the way that you are doing.