Most certainly (in regards to learning their craft well enough to know how and when to break 'rules'), but tell me really, what do traditions have to do with making "good music"? Do you really think the audience is dumb enough not to appreciate the unusual? I'm not saying you do, but I like to have faith in mankind in general, and their ability to interpret art. But all I can do is speak from my own experience, and the number of people who have said something to the effect that they've been deeply moved by my performances are not in any way limited. This includes a lot of "non traditional" style playing. And of course I'll always say there's a use to re-inventing the wheel, if it can touch somebody and allow somebody to understand some small part of me, as that's the most I could ever hope to come from my music. You see my point.
I'm certainly not saying that all music should sound like classical music, or follow baroque rules or anything like that. I'm just talking about being aware of, and making use of the accumulated knowledge of humanity that came before us. Chemists should probably learn about the table of elements before engaging in serious chemistry. There are musical equivalents to the table of elements, and this knowledge doesn't need to be rediscovered or reinvented because that work has already been done by our ancestors, and is available to us in various documented forms. There is an understandable impulse to rebel against rules and their perceived restrictions, but at some point you have to realize that at least some of those rules have some real value, and some of those old dudes actually knew what they were talking about.
