Temporary permits last for three years and can be renewed for another three years. It is very often the case that, after staying for five years, a family says:
“Well, we like Canada, and we're established here. It's five years, and we're going to apply for citizenship”.
Very often, we require those students to go to another school, a francophone school, for their final year of high school. Just because of the fact that they decided to stay in the country, we require them to make that gesture of affiliation.