How many students have that much money lying around? We're talking about airfare plus US$1000. Students worry about beer money, and they graduate with huge debts.
As for the internship locations, start here:
Amazing Internship and Training Programs in the US| CHI
Take the internship program link, and you see this in the opening paragraph:
"Cultural Homestay International's Internship Program (IP) is a practical "on-the-job" training in an American business for overseas University students and young professionals. "
Read what they have to say about being a host business:
"CHI has developed relationships with many local and national businesses in the United States. "
http://www.chinet.org/itp/internship/hb_whatis.html
Looks like it's in the USA to me.