The artist will have creativity and taste by the age 16, then evolve it through their 20s.
The ai generation of artists will grow up with ai tools
This is akin to saying "The current generation who grew up with computers will be good at computers." Your statement is just as false as mine.
There is no subtitute for drawing a face to be good at drawing faces. No AI will ever help that.
The problem is that an artist still needs to eat in the 10-20 years it takes to develop "creativity and taste".
What AI will do/is doing is knock out the entry-level jobs. If you can't train humans on the entry-level, you will eventually have no experienced people.