Hi, i can see from where your such a "concerned" topic pops from. well if you notice closely many guys r turning back to the arranged marriage philosophy and resort to thr parents choosing brides for them. And like it has always happend in india, things r done on the basis of belief more than rationality. once upon a time in india some quack introduced this concept, perhaps by means of blind faith things also turned out to be as he predicted (guess his stars were lucky) and since then this saga of quackery is goin on.
But in the end.. all we can do is just agree to these beliefs of elders coz thr is no way u can win someone against thr hard core beliefs. as it goes.. a man convinced against his will is of the same opinion still..

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hard fact.. take it with a pinch of salt!