If many people want to spoil there lives let them. Nobody who has have hard earned money will be in senses to throw away precious 3-4 years just to get in IIT and sit with so many juniors. On the other hand coaching classes will have double benifits to prepare for 12th Firstclass and also to IITs. Who is going to prevent that? Whereas many genuine students who will miss the 1st class in 12th will certainly be ruined for life as they can't appear to board 2nd time!!! So far many who hadn't scored 60% in board have got cleared JEE and alumni of IITs(incl. myself).