Well yea, I understand... but this kid doesn't have any reason (or means) to do that. She has family/home in Pretoria, and the friends she's traveling with have businesses and life to get back to in Pretoria after their vacation.
You know that, INS doesn’t know that. South Africa is in turmoil and they ARE more likely to want to get out permanently.
Yes, but the looming troubles associated with land reform renders some measures indicating motives to return meaningless.