It's mostly a problem with "requiring" the credentials by law

I have no problem with you wanting your doctors or lawyers to have credentials for your own needs

I take issue with people requiring me to seek doctors or lawyers with credentials, as that then has set up a compulsory system which reduces the quality and quantity of law and medicine produced, which has predictably created things like doctor shortages today (see news stories on doctor shortages)

So AI will fill some of these shortages if there aren't burdensome regulations put in place to prevent it from doing so (such as regulations that currently exist)