Here is a good assessment of the Sanders plan. I suggest you read it carefully. Sanders and anyone who supports this approach is very naive. It’s a recipe for major cost increases, and strict government control over the health care you can receive.
Since the cost would be paid via taxes mostly paid by somebody else it’s also a recipe for “who cares what it costs?”
While 100% coverage for just about any health care including vision, and dental care sounds appealing it’s actually a reinforcement of what got us into trouble in the first place … health care spending is not my responsibility.
Such a plan has no chance of working without the government doing exactly what people decry about insurance companies (questioning care, limiting access, managing care, directing access … and raising premiums or taxes to meet growing costs of health care) and worse, much worse.