Do we still need official war artists in the days of smartphone photos? Why or why not? 150 word

in the past, young artists would study with a master artist to learn from him. They would copy his art in an attempt to gain his skill and wisdom and he was right there guiding them. Art historians are often able to identify these copies, but not always. As a result, there’s sometimes the risk that a collector will purchase an art piece attributed to a master when it was, in fact, his student’s work.

can you rephrase the question? was there a picture to go along with it?