I like richardson's idea as well. Especially when one reads the stats on the number of people who end up retiring before 65 because they get laid off and can't find other work.
In the long run I think getting more and more people out of the private market, and specifically the employer provided private market, would be good for the economy. I can only imagine how many people there are with an idea for "The Next Big Thing" who never pursue it because they can't risk losing their health insurance. Or they can't afford to buy it on their own, but if their idea was successful they'd eventually be creating enough tax revenue to more than offset any subsidy they received during their "start and grow the business" phase through medicare for all or whatever we come up with.