A stable / consistent source of funding not connected to one industry.
Nobody is going to be better off if the funding for their mental health services is cut off because X industry is having a bad time or gets reclassified or something else.
I see this happen with sin taxes and other funding sources with education programs all the time. Programs cut, people fired because their funding is some sin tax or very specific source that dried up. Important services like mental health and etc should be funded consistently.