Hotdog, anyone?

This is my son showing me his hotdog ready to be eaten. We bought it at the stall near the White House. I just think it is weird that they are allowed to put a stall there. For me it's not apprpriate place and doesn't match the beauty of everything in that area, considering that it is a historical place and attract tourists and travelers alike. Anyway, maybe it is because those are just rolling stall and they can move wherever and whenever they like to.