But wouldn't it be nicer to have that walk without being plugged into your phone, and have less actual work to do when you sit down at the computer?
It would be even nicer to be carried by a bunch of servants and fed exotic fruits and not have to work, too, but isn't comparison the thief of joy?
For sure, and a good part can already be automated. But certain things still require human intervention and always will. Keep in mind these work related walks do not replace other outdoor activities.