Why does Michael only walk?

Why is it that Michael chooses to walk exclusively as his mode of transportation? Could there be a specific reason behind this decision, such as a health concern, environmental awareness, or perhaps a personal preference? It's intriguing to ponder the motivations behind his choice, as walking is often seen as a slower and more physically demanding method of getting around compared to other options like driving or cycling. Does Michael find walking to be a meditative or calming experience? Or is there another factor at play that we're not aware of? It would be fascinating to hear his thoughts on the matter and gain a deeper understanding of his decision to walk everywhere he goes.