It's not the physical space so much as the time. If you calculate _all in_ times for commuting (getting ready, travel, gas, wait, walk to/from transportation) most commutes are easily an hour on each side of the work day.
That's 10 hours a week.
That's 10 hours a week.
Which is insane in retrospect.
I'm fortunate that I can shift some of my work time to my train time, but it's still a big chunk out of my day to just move around.