Having medical skills is something so many people push aside in preference for other things but should not. In difficult situations a minor medical issue could spin out if control of not treated/addressed so a basic understanding at the very least is important.
As for legal aspects, it's probably the same as above I'd think. It's a minefield as well.
There are homeopathic remedies for these instances, a great many of them. Stop hemorrhaging, ameliorate excruciating pain, restart a heart kind of stuff. Minor issues do not spiral as often out of control if treated correctly.
The legal. This post has made me want to know at least a little more. I'll start with laws regarding homeopathy. At present, thankfully, there are very few.
Yep, it's definitely something we used to know more about (generally) and has become somewhat lost to most nowadays. A shame really. I guess it's all (or partly) thanks to big pharma and human greed and the desire to make everything easy and accessible. It's the same with other basic skills that kept us alive like hunting, cooking, building with our hands. I'm speaking generally here, but so many skills have been lost/discarded.