First, I am very sorry and feel bad to hear this. I understand the pain they have gone through.
But This is absolutely parents ignorance. How can they expect Airports officials to allow the foreign nationals without proper visa papers? They should know, what are the procedures before traveling to India. We can't blame airport officials. If we provide any exception to it, then we are in deep trouble in terms of National security. Absolutely, is inappropriate to compare others who (French) got some visa.
