[dexwiz]

Right now getting hired is a gate, but having to join a guild before getting to learn would be another gate. Also the guild gate is a gate on knowledge, which is even more egregious, and its evaluations would be even more nebulous as it would be based on potential skill and not current skill. This means joining a guild is more akin to apply for college.

Companies have to abide by Labor laws and Colleges must have fair admissions, but a private guild could be much more exclusionary without the same legal repercussions.

I think medicine is more unique because it's one of the few fields that customers (patients) consistency demand quality over innovation. Do you want the treatment that works, or the new experimental one? Most people will want tried and true first. Of course there are always exceptions to this.