It is actually a
simple quote. If you are still below 12th standard or in degree, most
parents let their children plan and think for themselves. Well, they mean
that if you don't want to be a doctor or something which is advisable
by experienced adults, you might opt for sports or what so ever. I think
it is advisable to follow this rule because you don't know better of you
than your parents and they know what is good and bad for you.