Good he has insurance. A gofundme page to support parents! I'm afraid travelling and staying here with your son is a normal expense in the curcumstances that unless parents are destitute they should finance themselves, just like all other families do and has been done in the past before online begging began. Son has insurance so no unmanigable bills and so the family pay their own travel expenses to fly out and stay. An unexpected cost but that's part of life. Hope for a speedy recovery.