I don’t even see the point of discussing this. It does not take much more energy than sitting in a car for the commute, it is less wear and tear on the roads. The extra energy goes toward exercise which if the person does anyway means the travel is free and if they don’t it means greater health and less medical resource use. Walking/biking places is such a no brainer and any time I see something even discussing it, it involves some just stupid mistakes (using total calories burned rather than calories used above what a person driving would burn anway). Its a waste of energy to go through such a well known thing.