17% seems like a really high percentage, actually. Also, without reading the linked study, I can't figure out whether it's 17% of all trips, or 17% of all walking trips that are "just to walk." If one out of five trips are for aimless relaxation, that sounds absurdly high.
If you're comparing the average survey respondent to your average independently wealthy 19th century author, there's a few pretty obvious reasons why people with normal jobs don't aimlessly walk all the time - such as a job and the appeal of aimlessly driving, which I'm sure scratches nearly the same itch.
If you're comparing the average survey respondent to your average independently wealthy 19th century author, there's a few pretty obvious reasons why people with normal jobs don't aimlessly walk all the time - such as a job and the appeal of aimlessly driving, which I'm sure scratches nearly the same itch.