leadership is a skill not talent. A skill can be developed by anyone. In fact, investing in piano lesson is more risky because unless the child turns out to be outstanding, knowing how to paly it generates no practical value. Leadership on the other hand, has a much greater deal of granularity and takes many forms. If your child is already in grade school, you can start by training him to giving short but structures talks on daily basis. For example, to mandate him to talk for 5 minutes about what he sees and does during the day, followed by Q&A, and do this in a setting comfortable to the child. "Show and tell" is also a very good tool.