I think that specifically in the case of a coworker in a technical field, say software engineer, we already have an apprenticeship system (junior, senior, architect, etc) where the use of these tools, taste, competence, evaluating code and architecture, are all experience-based and pretty self evident as you progress through your profession and gain experience. The same for, say, an electrician or any skilled trade. These AI tools are just those, another tool that you use to further your profession and of course somebody starting out will perhaps generate more slop or bad code. But more senior coworkers with experience, taste, criteria, etc will guide those people and you progress and improve.

Beyond that, when the tool becomes more than a tool and becomes your coworker, with his/her/its own criteria, taste, methods, etc - than THAT is when the rubber hits the road. haha.