Where I train, we don't have many consistent students anymore. A lot of people come from other schools where they were handed over their next belt simply because they paid their tuition fees. So when they come to our school, it is a bit of a culture shock. Sifu will NOT move you on to Chum Kiu simply because you have memorized Sil Lum Tao. That turns a lot of the "instant gratification" people off, but I like it because then my classmates are all people who really want to be there.
Sometimes you still get jerks. There were a couple of guys who had learned the first two forms, half the dummy and some chi sao...and then they started training other people privately outside of class as if they had been given permission to do so. Sifu isn't very "traditional" when it comes to a lot of things, but there is one thing he does stick to: don't run off and teach when he hasn't given his blessing.