People Lose Their Employer-Sponsored Insurance Constantly
This then is contrasted with a Medicare for All transition where people will lose their employer-based insurance as part of being shifted over to an excellent government plan. One thing opponents of Medicare for All frequently say is that poor people in the US are already covered by free insurance in the form of Medicaid and that Medicare for All therefore offers them relatively little net benefit while potentially raising their taxes some. It is easy therefore to see why young people are not as spooked by the idea of losing their current insurance as part of the transition to a Medicare for All system: half of them already lose their insurance every single year.
Source: www.peoplespolicyproject.org