foreign exchange student

I had several friends who went to the States as exchange students. Some were wealthy, some were middle class and their parents saved up for years to send them to learn English and live with a family for a few months. They usually were "matched" with families with children/adolescents of the same age. Ages went from 11 to 16, if I remember right. The one program I remember was called "The Friendly Exchange", send me a PM if you want me to find out more. Also, there are au pair programs to get baby sitters who want to learn English. Au pairs just pay for their plane ticket, unsure if there is an additional fee, but if there is, it will be far more affordable. The average age is 18.