Don’t have your child try to excel at everything he does in pursuit of building 10,000 hours of talent.
There are some building block activities that contribute toward your child’s talent, but not every activity should be pursued to a level of world-class performance. For example, one of my children is interested in minerals and would profit from learning how to use a microscope to study his material at a deeper level. However he would not gain by becoming an expert in microscopes. Added expertise, beyond proficiency, would only detract him from focusing and building up his core interest.