Dance, which is the child's special hobby, should be a girl's specialty until the age of 22. However, during the middle school years, schoolwork becomes more stressful, and when there are major holidays, the start of the school year, graduation ceremonies, and so on, the school will endlessly pull your child into practicing dance, which will put even more pressure on her schoolwork.
Dancing from a young age, as a hobby, has improved the quality of personal dance, and if you can get into a major school in this area in the future, you can put it at the top of the list, as a special student recommendation. But dance is to eat youth meal. 22,3 years old, if not the head actor in the dance good light quickly passed.
Electronic piano as 'play', can. The whole world is full of people learning to play the electronic piano, but if it is not the best of the best, there is no real point.
Dancing takes up time, factor that in, if you can bite the bullet and keep it up.
Electronic piano can be dropped altogether. As a hobby, you can play it when you have nothing else to do.