Can all traditions be followed?

There are many traditions in Indian & Hindu culture and they have been followed blindly by our ancestors, parents & even by us. But can all of them be followed as they are?

This topic is out here because of Jaswant Singh's recent controversy of serving diluted opium as per a tradition in Rajastan for an occasion. Jaswant being a senior BJP leader, one of the ex-Foreign minister & ex-Finance minister should definitely have had given this some thoughts.

This issue is getting enough recognition that this'll sure set an example for everyone from committing such blind crimes... What say?