Who We are DeMolay is the premier youth organization that strives to help young men to be better for their communities Q-What is DeMolay? A-DeMolay is fun. It allows your son to travel and meet new friends that last for a life time. Q-What Is The Age For Joining DeMolay? A-The age for joining DeMolay is 12 years old. A member is aged out when he turns 21 he is also considered a "Senior DeMolay". Q-What Are The Requirements For Joining DeMolay? A-A young man between the ages of 12-21, who believes in a Supreme Being.