On a flat surface, bikes expend less energy to use than walking. This actually makes total sense. Biking is also a kinder motion on joins than walking which is actually quite hard on knees.
Not the same a bike in the plane street than a wheelchair on the sidewalk with borders on the beginning and end, often problematic for people in wheelchairs in cities with too much obstacles for them.
On a flat surface, bikes expend less energy to use than walking. This actually makes total sense. Biking is also a kinder motion on joins than walking which is actually quite hard on knees.
Not the same a bike in the plane street than a wheelchair on the sidewalk with borders on the beginning and end, often problematic for people in wheelchairs in cities with too much obstacles for them.