College in Canada is an excellent idea - not least because it might facilitate working in Canada and perhaps marrying a Canadian. I remember checking at some point to see whether money in a college savings plan (529) could be used abroad, and generally speaking it can, though you have to check if the specific college is listed (over a hundred Canadian colleges are). If they have the resources to move to Canada at all easily, they are the sort of people who probably have significant money in a 529.