She got one for Christmas, you know the interactive ones. She didn't play with it much at first and we thought it too old for her, as it's for 4+ and she's only 3.5. But recently she has started to play with it every day, for hours at a time! I wouldn't mind so much if she learnt something from it, but I'm not sure as to its educational value, she's far too young to start reading yet so most of it is probably going over her head. But honestly she plays with it non-stop and we've had to start limiting her to perhaps one hour a day.
It was wonderful at first as she would sit there quietly, but now it's worrying. Should I be worried? Or is this normal? And just how educational are they for someone her age?