Why would someone who is at his senses leave his beloved family? Any person going on such a one-way trip must either have no family at all, or must have a seriously disturbed relationship with that family.
No they don't, have you never heard of familys?!, why would an applicant just give their money back when they can hand it off to their parents, or siblings, spouse, children, relatives?
I don't have feelings for any of my family members but they are great people. No disturbed relationships here. Now what?
Anyway, congratulations on getting to round 2 and good luck with getting to mars!