What I'm trying to explain is that for the top level juniors who become pros, it is not a hobby or "thing", it is their entire universe. Top junior players th

What I'm trying to explain is that for the top level juniors who become pros, it is not a hobby or "thing", it is their entire universe. Top junior players that expect to become pros are already touring the world when they are in their mid-teens. Their entire world is their parents, their coach, their peers at their tennis academy, and the players they see at tournaments. They are living and breathing it, and little else. The top junior players often do not participate in regular high schooling and the promising ones that go pro young, don't go to university at all. Almost none of the top pros even today have ever gone to university. The players that do make it to successful careers in the top 100, don't make it with the attitude of being half in with a backup plan. They make it with the idea that tennis is their entire life and purpose.