I don't quite understand why this is a problem? If a parrot is able to perfectly defend someone in the court of law then does it really matter if it never had a license to do so?
There's a problem, for the same reason that you can't do surgery on people without being a doctor.
We've tried letting parrots practice, and it has turned out poorly for everyone involved.
Seems like the money gets sent to people who know how to talk, not on their abilities.
Unlike engineering, or medicine, the overwhelming majority of software projects are not life-critical.
I wouldn't build a bridge the way I build software. I don't work that way because I can't be trusted, I work that way because the stakes of failure are low.