Yeah, your art teacher seemed to have a very limited idea of what it meant to be a painter. I mean, considering the random shit that is considered "painting" stuff like Jackson Pollack, and other...I forget the style of art, but where it's just like, a blue dot on a white canvas, and that's "art", I call BS on saying that anything anyone splatters onto a canvas isn't art. Now, I do think a lot of that stuff isn't GOOD art, in that I personally don't give a shit about your blue dot on white canvas. It doesn't say anything bold to me. But I'm fine with you calling it art. But, yeah, ANYONE can paint, just like anyone can sing. Quality is of course variable, and some will be more naturally skilled at it than others. But it's a skill, like everything else, and pretty much any human can learn it.