I think artists need room to explore as do pre-schoolers. Personally I think time, space, supplies and positive feedback support visual arts pretty well. When she needs "how to" support maybe find a video online. I had art classes when I was younger, though well intentioned I didn't learn from them, because I wasn't interested in drawing leaves.

I think vision+voice is ultimately more important to a visual artist than skills. Skills you can learn as needed, but voice and vision can be fragile.