Language retention is, in part, about the enjoyment of speaking French and feeling that your French is good enough to go and work in French. That is heavily dependent on post-secondary education. Adequate funding for the education system, from early childhood to post-secondary, would help address the challenges related to language retention and language transfer. We know that underfunding contributes to higher rates of language transfer and lower retention, as do issues surrounding immigrant recruitment.
In Canada, almost 100% of population renewal is from immigration. However, for more than 50 years, the Government of Canada has not recruited enough Francophones. It's clear that these measures, programs and policies directly contribute to the demographic decline of francophone communities.