zahavasdad: As we in Israel would say “Mah Hakesher”?
And therefore? If I had to guess, I would say that their parents are paying for their trips.
What does that have to do with chilonim supporting them? Unless your kollel relatives have chiloni parents who are subsidizing their jetsetting…..(Which, BTW there would be nothing wrong with IMO, if that’s how they wanted to spend their money)