Anecdotes are pretty bad man.
A year ago I had a really bad skin reaction to something I came in contact with, it got progressively worse and worse so I went to an ER. Everything was pretty chill... No rush or any of that, literally took a nap in my private ER room while I waited for my test results (and because they dosed me with some pretty heavy pain meds). A few hours later they admitted me, once again a private room, spent the night while they gave me a bunch of IVs and monitored everything. Left the next day. This was all at a hospital in the middle of a big city.
Granted I did get a bill a week later for $21,000, but that is beside the point... Your friends story is hardly representative of ERs everywhere.