Young kids have the aptitude and flexibility to snowboard. Many top resorts have programs for young kids and it is excellent to help develop flexibility and strength . Some will take kids once they are potty trained.
Visit to learn more about programs offered as well as to find supplies for your skiing and snowboarding needs. Warm clothing is very important including face coverage. People I know up at Bromley were surprised by a small burn on their faces at certain points that were exposed to the cold and wind. Remember in Vermont some days are -12 degrees and that's not even at the mountain top!