Why are only doctors protesting quota move?

First it was doctors in Delhi. Then doctors in Berhampore. Then doctors in Bangalore. Now doctors in Ludhiana. And soon doctors in Bombay.

Question: why are only doctors and medical students feeling emboldened to protest against Arjun Singh's planned move to increase reservations for OBCs in higher education?

Don't the others care, or is there something else afoot here?