[quote=@Darlit Glitch]
<Snipped quote by Host>

*The few people sitting in the waiting room look at you sceptically.*
Julia: ...You're talking about a group or place that's also salvaged some medical knowledge, right?
[/quote]

We just build on top of what the people before us learned. Where I'm from, they decided that the medical field was really important, so they set up schools specifically built for people to learn how to treat others.