We adults, we just walk. And in the exceptional case that we do use those legs of ours in a different way it is probably highly functional; we run to catch a bus to meet with our busy schedule or we want to keep in shape.
It has been raining for days, but the weather forecast stated at least two dry days in a row, so I took this moment as an opportunity for my little project:
One and a half hour, two pair very soar arms and legs and many pieces of chalk later a big trail of about 200 meter was finished. From 30 pieces of chalk this was all what was left: