Yes. I think there are many ways this could be created. A licensing board would absolutely regulate the ability to practise for all participants.
When I talk about professional standards, professional standards are really what sets the tone for how a person should behave. Predators are so good at grooming people to make them think they're the best person, the pillar of the community, and then it's shades of grey. They groom the gatekeepers, the clubhouse key master, the board members, and they blind them: “Oh, no, no, that's just him. He likes to do X.” That's how predators work. They slowly push the boundaries.
What we need is clear boundaries. If the professional standards are there, then the alarm bells go off much more quickly. Licensing is absolutely one way to achieve that.