An interesting chat with one of my batchmates last night made me think on these lines, why conservative people are against inter-caste marriages? Foolish question, eh?
As early men, i.e., during the evolutionary transition of humans from monkeys, they lived in tribes. Many a times, the girl was married to another tribe's boy and most of the times the boy's tribe was a traveling one and had a slim chance to meet the girl's tribe again, which might have started all the "crying" thing while giving the girl away. But anyways, if inter-tribe marriages took place, why not inter-caste (I do know inter-caste marriages do take place now a days!)
It is a known fact that a person doesn't marry in family but in other families so that better species is produced. Same was the case with marrying in other tribes. So can't this be applied to inter-caste marriages?
Inter-caste marriages should produce more vibrant (rather diverse kind of) progenies, but I don't have any way to verify my hypothesis! :(