Why can’t democrats trust their own constituents to do the right thing? Their first response to every problem is to institutionalize it with more government, typically as far up the legislative food chain as possible. That means as far away from you as they can manage, even to the point of giving control to unelected bureaucrats you can’t punish, just to keep you from messing with it. They entrench it in a bureaucracy, make it impossibly inefficient and expensive and then refuse to let anyone touch it ever again, while charging you more and more to maintain it.
The only reason I can think of for that kind of knee jerk behavior is that Democrats use themselves as the template for the rest of us. The left by their very nature must be selfish, insecure, inconsiderate and un-trusting. Only people so un-giving of themselves or simply incapable of volunteering their time and energy would have to mandate volunteerism and "giving" by legalizing the taking of other peoples time or property through mandates.