Hi my 2 elder kids love the iPad. They have learrnt alot through Youtube videos and educational apps. It has also been a helpful tool during some awful tantrums. However, I struggle with using it too often too just like you. I think it's all a matter of moderation. I let them use the iPad after they have finish all their important stuff such as bath, dinner, homework etc. And I limit it to about half an hour. I think with younger kids you might want to let her use it for a shorter duration. Important to let them rest their eyes too after watching to prevent myopia.