Is it illegal for minors to carry guns?

The laws vary quite a bit from state to state, but in general, it is not illegal- but it IS restricted. When I hunt with my grandson, who is 14, he is a minor carrying a firearm- but it is legal since he has his parent's permission to hunt with me. In some states, a minor performing work as a rancher may carry a handgun- on his parents property, or with their written permission. The common factor seems to be with parent's permission. However, as I said- laws vary state to state- and country to country. You would need to check YOUR laws.