Except that runs counter to (a large portion of) the point of Medicare, which is to provide assistance to the old. (Yes it's also for low income households, but it's also a lot aimed at the elderly as well.)
I'll take a stab at guessing what you were trying to say though.. For a large number of the US jobs 65 is getting a bit on in years, think manufacturing, service, etc. also known as a large number of the , at 65 a large number of jobs aren't much of an option anymore.