Home grown are kids who actually live in the school district boundaries and have for many years, and who did not open enroll for the primary purpose of playing sports. Someone who open enrolls and never moves into the school district is never considered home grown. I suppose this is a public school comment. For private schools is it hard to define home grown. Probably someone who lives withing a few miles of the school, not someone who drives 5 to 50 miles to get to the school, or enrolls for the primary purpose of playing sports