Dunking is painful. There is a consequence for slamming one's hands, wrists and forearms against the rim. Falling from the sky takes its toll on the knees, endangers the ankles.

How hard is it to dunk?

Challenging: 5′ 10″ – 6′

You'll need to jump roughly 24 inches to touch the rim and 30 inches to dunk a full sized basketball (assuming average arm length). ... In this height range, very few people will be able to dunk without training their jump. However, with some training you will be able to dunk quite comfortably.

Can a 13 year old dunk?

Most 13-year-olds can't dunk. ... delighted fans during warmups with a dunk attempt. He threw a lob to himself, but failed to secure the ball. Nevertheless, he grabbed the rim and revealed some pretty top notch athleticism.