My 23-year-old son is a full-blown folkie, plays guitars very well, and a little mandolin and penny whistle, and has recently joined the 'cat under the name "Bull Am". I don't really know exactly how it happened, given that he always lived with his Dad but has a very strong sense of attachment to my side of the family -- whom he rarely gets or ever got to see, but they've had a huge influence with him anyway. It thrills and amazes me. I feel as though he spring up full-armed, or fully-instrumented, like the goddess born from Zeus' forehead.