Licensure isn’t about how good you are. It’s about ensuring that you, as a professional, understand the ramifications of your contributions to the work you do and the field you are a part of and accepting the responsibility of those ramifications.

1. Does it have a record across industries of demonstrably doing that? I don’t believe so.

2. Is there any evidence of that actually being a problem amongst self-taught devs? (And not a problem amongst traditionally degree’d devs?)

In my experience, self-taught devs have a higher sense of responsibility when it comes to code than fresh grads or boot-camp devs. But of course once someone’s been working for a bit it all evens out.