your concern about sending teens to Oz and staying with someone you dont know.. i would say do you feel that you are a positive role model? would you trust someone like yourself? would you host an australian kid for a contest in the USA? my guess is that you would
I've met you and your son briefly,
I know I would let my son stay with you if you offered a place to stay.
Just the positive experience of the santa cruz worlds and the people I met there involved would make me feel at ease in letting my teenagers go to OZ.
I've been to OZ a number of times, first time as a teen, henry and terry put me up for 6 months! lent me thier car until I bought one. As Smokin Rock said australians hospitality is legendary! Reciprocally I put them up when they came out to the states. one of the them I still talk with, friends for life

I sense nothing but positive vibes with this

tom