There are a couple of things. As Ms. Graziadei said, one is that the process of determining the questions that will go into the census, the consultation process, will be under way shortly. In general, on how to collect information in the best way, the most scientifically sound way—and there are alternative ways of collecting the information that you're looking for—Statistics Canada officials are the professional experts, and they make recommendations to the minister, saying that in the event that you need to collect this information or recommendations to the government, this is the approach they would recommend on a scientific basis, in their best professional judgment.
On March 9th, 2017. See this statement in context.