You're talking about pedagogy. In today's teaching methods, in 2010, punishment doesn't produce the same result as it used to.
Today, we're in an era of plurality. There isn't just English and French. There's also Arabic, all the African ethnic languages and Creole. There's the recognition of language as an object of communication. So, of course, we encourage expression in French. We speak French during the classes. In the halls, we speak French as much as possible, of course. However, we don't punish the students; we don't give them tickets, and we don't send them to the principal's office. We don't do that.