DS started asking at 2 if he could learn the violin. He kept at it and a month before 3 we started. We found a teacher that usually took children from 5 (non Suzuki) and she has been great. He didn't particularly enjoy group music but loved one on one teaching. He's 6 now, still loves it... smile. He did Montessori 3-6 at 3 1/2 for one year but we elected to send him for only 3 hours, 2 days a week.