And less than a century ago, scores of people drew background images for Disney animated feature films, with the better ones getting allowed to draw main characters, and the best having final say in accepting or rejecting drawings.

I guess the same happened with those creating and animating 3D models for the likes of Toy Story.

Sure, but we're talking about the near-future impact of AI. My point is that I don't think this is going to make much of an impact on available apprentice positions. I'm not worried about da Vinci; he won't be harmed by this.