The system is built in English. Yes. There are a couple of staff members who are starting to speak French but these are not positions designated for Francophones. Furthermore, as you said, the population is aging. And people are now aging in the Yukon. That, too, is new, because people used to leave the Yukon when they got older, to join their children further south. But now, Southerners are moving to the North.
There is also another reality: people here bring their parents to the North from somewhere else, and that is a very common reality for Francophones. There is a Russian lady, but no one speaks Russian. It's more complicated. That is the reality of children who are here and bring their parents to join them.