M4A would eliminate the phenomenon of "job lock," where people stay in jobs they dislike solely for health benefits. By decoupling health insurance from employment, M4A would allow individuals the freedom to change jobs, start businesses, or pursue nontraditional career paths without worrying about losing healthcare coverage. This could foster innovation and entrepreneurship.

Opponents argue that employer-provided health insurance incentivizes productivity. However, research suggests that job satisfaction and intrinsic motivation are stronger drivers of productivity than benefits.

With M4A, there would be fewer insurance companies and administrative complexities, leading to significant cost savings. Streamlining the system could eliminate redundancy, simplify billing, and reduce waste, lowering the overall cost of healthcare. A 2020 study in The Lancet estimated that M4A could save over $450 billion annually in healthcare costs. Additionally, preventive care could reduce long-term costs associated with untreated conditions.

While Medicare for All (M4A) may result in increased use of healthcare services, particularly by those who were previously uninsured, the cost savings it provides are more than sufficient to cover this demand. It's important to note that individuals who were already insured through their employers do not absorb these savings. Previously, their employers covered the cost of health insurance, and now they pay a similar amount as healthcare taxes.