Approximately 20 million children participate in various programs in the United States and another 80 million are involved in unsupervised recreational. degrees of success depending largely on the. According to Patch.com: A store manger at the Lego Store became concerned for the well being of the unsupervised child and contacted mall security, who then called 911, police said. The child was left. Janefonda Aerobics London: Veteran actress and fitness expert…