Haaniya… why did he friend request you? How did he come across your profile (mutual friends, saw you as a member of some group, etc.)?
What kind of passport does he have? (Even if he tells you it’s European, you can’t really be sure). If he has a Pakistani passport… he’s not coming this summer unless he already has a visa.
He says he might consider coming to the US to study, then wait. See if he really is proactive about it… mentions schools, programs, locations, etc.
For some reason, I find the whole wanting to go to school in the US and opening schools in Pakistan to be a bit suspicious 
I mean, if he wants to do social work, he doesn’t have to come to the US to study. And if he wants to be a teacher, he could get a degree from wherever he is right now and go back to Pak. This is another thing to consider… teacher = less salary… and you did mention his lifestyle and cars… plus, a chance you’ll end up living in Pakistan.