Everyone* can learn to draw a very good likeness of something, and I say this as an art teacher. I have yet to have a student who didn't improve in my class.
My grandfather was an artist. Of his eight grandchildren only two were encouraged to draw and practise every day from a very young age, and we are the only two good at drawing, and I don't think that's a coincidence. Many have called us talented, but is it talent or is it practise? I know that by the time I hit kindergarten, I likely had hundreds of hours of practise on the other children. Bottom line, in my experience as a teacher and an artist, talent helps and makes it easier, but it's not the determining factor whether someone can learn to draw or not.
The ideas that lie behind great art, not just great likenesses, is something else, though.
* Certain disabilities excluded