I think they're pretty much worried about all of the above, but nevertheless, I hope I can try to convince them that sorority life has good benefits.
Do as much research about the benefits of greek life as you can, and hopefully you can win them over before next recruitment As long as you're prepared to counter their concerns, that's all you can do.
__________________ ACW
To let my lyre send forth the chords of love, unselfishness and sincerity