There are sixty million kids people in the United States between the ages of 5 and 20. Over half of them haven’t entered adolescence yet. It’s the biggest demographic bulge since the baby boomers.
Demographic changes, market homogenization caused by a fashion/lifestyle/cultural focus independent of actual participation in the sport, and the financial resources of large corporations are expanding your market. The catch is that you have to figure out what piece of that market you can compete in. Do your marketing