When Does Interest in Art Appear?

They take school very seriously these days. My grandson's kindergarten teacher asked that he
do a journal while visiting here in Texas 4 1/2
days.

I thought he and I would have such a good time,
but it was quite a challenge. He draws and paints, but would much rather do something else. He wanted me to play soccer with him, instead, and he is good at that and at catching a football (not at all what I like doing...even on a sunny 70 degree day.) My guess is that he is not going to be an artist. I am curious about when interest in art first appears in children who go on to become artists.