Shri krish,
I know more than three parents who all live in our midst. Their children (son or daughter) have married Christian, Half-muslim, Ezhava, etc., partners and all these parents have gone more than once to the foreign locations where there children live and have also posted photographs in their facebook pages. The (orthodox) mamis can be seen wearing skirts just touching the knees, tight-fitting shirts, sleeveless tops and so on. One couple was seen in the backdrop of what looked like a restaurant serving NV food, liquours, etc. also. Hence it is beyond doubt that even these so-called orthodox people have absolutely no worry to go abroad and enjoy the life there. But once they return and meet us somewhere, they usually as though some great loss has happened to them on account of the IC/IR marriage of their son or daughter. We do not broach the facebook photo subject in our conversations because we know it will only result in spoiling our existing relation/friendship.
We all want our children to be happy in their lives; they cannot be taken back in a time machine to our youth or to the youth of our grandparents.