Hamas runs summer camps, in which the children learn to shoot weapons, attack from a tunnel, fight against tanks and kidnap soldiers. The camps are early stages for military training in Hamas and integration into the military wing. According to the United Nations website for the Special Representative of the Secretary-General for Children and Armed Conflict, a prohibition exists on the use of children as soldiers.
Archive (including paywall bypass): http://archive.today/2024.01.03-193159/https://www.foxnews.com/world/exclusive-hamas-islamic-jihad-accused-using-child-soldiers-war-against-israel
Hamas recruit from the age of 13, we’ve known this for more than two decades.
Isn’t really surprising that Palestinian Islamic Jihad do the same, just as we know the Houthis do as well.