Young at heart over 75 years of age can of course climb if they are in moderate physical condition and the lead instructor is aware of any maladies. Even paraplegics can climb. Quadriplegics can climb as well but special rope systems must be used. This is not a spectator event unless one is waiting in line to climb or a parent is waiting for the child to come down. Long lines are typical.
Children naturally love the activity and challenge.
Children are often seen running to the end of the line after a climb or running up with their friends in tow to wait for their turn at the ropes. Parents will have to patiently wait with the child if they are together. The effect is created by hanging in midair with nothing below them except air and the ground far below. Some climbers will request to be swung while others will simply enjoy the sensation of suspension. This is true with boys, girls, and adults alike.