Heh, sounds like me back home. My brothers and I ran, and climbed, rooftops all the time. Only...I'm used to much taller buildings. [Growing up in the big city and all. As for the wings uses.]

The wings aren't usable in flight. [That much might be obvious.] We're too big and heavy for them to carry. They'd have to be much bigger for us to fly. [His understanding of it anyway.]

The only use they have is keeping us alive. Since if they're removed we can die. Injuring them can make us sick.