I am going to take this opportunity to do a little advertising.
On May 28, Statistics Canada will publish a study on the evolution of bilingualism over the past 50 years. Immigration, in particular, is a factor. However, it must be understood that education is a provincial jurisdiction. Instruction in French as a second language is not mandatory in most provinces west of Ontario. There may be all kinds of reasons for that, but the fact that the composition of Canada's population is undergoing profound change is also a factor. That is all I can say for the moment.