I'm pretty regularly out of shape by those metrics and I have no real issues commuting by walking/cycling/transit, even doing commutes which are longer than ave

I'm pretty regularly out of shape by those metrics and I have no real issues commuting by walking/cycling/transit, even doing commutes which are longer than average. Physical fitness isn't the biggest issue or even really a big issue at all, the biggest practical issues I've found is getting large items to your home and the fact that a lot of work really does take a real full sized vehicle to load up with gear and people. Cars and trucks you to simply move literally tons stuff from place to place in a very flexible way, whereas on foot/transit/bicycle it is very awkward to move around even 50lbs of stuff without some sort of cart or wagon which really isn't going to let you haul all that much more very quickly. It's hard to imagine how you're going to move a work crew from site to site using bicycles lol. I really see physical fitness as really not being very much of a problem at all except on the extremes. Certainly not for 80% of the population. I'm also going to point out the obvious which is that people that don't exercise are absolutely the type people who should be avoiding using a car to get around everywhere.