I've got a background in music (and am Canadian.) I recall a rule of thumb that a person could reasonably go from utter beginner in piano to an ARCT level (that is, pretty much the top Royal Conservatory achievement of formal piano training) in 10 years of dedicated effort. (For a person not especially talented or a-talented.)
I am curious to know what kind of period of time some of you visual artists might estimate it would take to make a similar achievement in visual arts for a person who has never demonstrated any particular knack, but can hold a pencil, perceive color, etc.
I also am curious about any kind of recommended programs of study (informal-- not interested in schooling) you'd recommend. (There may well be many threads that I haven't yet found which go into detail answering this question; I'm glad to go there if someone points me.)