It's a delicate balance. Most children who don't want to be doing an activity will tell you so, or else they'll act out. If it's a mismatch, the child will be lethargic, disinterested or won't do it. When children are truly gifted and driven, encourage them, but don't focus on turning the gift into a career. Most don't go on in their field, and even when they do, there's room for only a few at the top.
Prodigies are very rare.
Let the child follow her love, and don't worry about making her well-rounded and normal.'. In some towns the pressure to play soccer is enormous, giving parents the feeling that you have to play if you live there. But if your children aren't stars put soccer in the mix of their activities and let them know they don't have to excel. Mostly, parents shouldn't worry about their child keeping up with his peers at such an early age. It's never too late to learn something, whether it's baseball or the piano.