FelizContigo

Sure. Unfortunately, the page you linked does not address the new regulation, which I added in a link above to give the most up-to-date information.
 
Here is the new USCIS page that addresses this: https://www.uscis.gov/legal-resources/proposed-change-public-charge-ground-inadmissibility It was posted online for comments on October 10th of this year. 

DL is a great idea, listen to this person

Can you get the friend to submit an affidavit acknowledging that he knew you guys lived together at that address?

DL is a great idea, listen to this person

Here is an article that explain how the tax payers end up with 40 billion dollars worth of unpaid medical costs.
 
Community ERs are not getting rich, contrary to your personal beliefs. 
 
"hospitals provided about $40 billion in "uncompensated care" — that is, care they were not paid for. That was nearly 6% of their total 2010 expenses."
 
 https://www.usatoday.com/story/news/politics/2017/07/03/who-pays-when-someone-without-insurance-shows-up-er/445756001/

The information you posted can only be useful in Emergency Medicine, and it is very misleading. If someone needs to see a cardiologist for an appointment after said emergency (heart attack) or oncologist (after said emergency visit for cancer finding). The Cardiologist or Oncologist  (not in the Emergency Department) can refuse to see you without insurance. Pharmacies won't fill scripts without payments, it is a poor plan for medical coverage for elderly. 
 
The poor and elderly in this country (who are USC) are the only ones in the country who are are guaranteed health insurance through either medicare or medicaid. So your above statement of elderly and poor being at the disadvantage is a mis-statement.  The working class is the most at disadvantage because they don't qualify for programs and health insurance is expensive. I would suggest you get more familiar with the medical system before you give out advice, as to not mislead people. 

My receipt notice is in the mail today. 

I did a breakdown of 282 yesterday. I haven't looked today since they take a long time to generate and I'm at work. But I hope this helps shed some light: