Do you oppose Medicare for All? How about Medicaid for All?

Disclaimer: I am a current recipient of Medicaid as a university student with poor parents (part-time jobs as a student don't generally make you enough to put you over the threshold). I use Medicaid when I get sick and need to see a doctor (market-price for visits is between $100-$400 without insurance), and I used it once when I had to go to the ER for a bite from a possibly rabies-infected animal (the cost of treatment was about $5000; the doctor essentially refused to let me not get treatment [I was afraid of the cost] since contracting rabies kills you 100% of the time).

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Now on to my actual question:

Medicare is of course the service that provides insurance for the elderly (65+) and certain disabled people. Medicaid, on the other hand, is provided based on income.

So my question is, how do you feel about Medicare for All vs. Medicaid for All? Would you be willing to support either? Is one more palatable for you than the other?

What do you think elderly and disabled people should do to get the healthcare they need, sans Medicare?

What do you think poor people should do to get the healthcare they need, sans Medicare?

If you were in my situation, where I had been bitten by an animal that likely had rabies, but the hospital costs would be $5000, and you didn't have Medicaid like I did, what would you do?