Have you ever felt guilty for taking a shortcut across a grassy patch rather than following the official concrete path? Or have you ever noticed a bare strip through grass? These are known as desire paths, or lines of desire (the latter term comes from the French phrase, “lignes de désir”, from the French philosopher Gaston Bachelard’s 1958 book, “The Poetics of Space”).
Architects would be well advised to pay attention to these worn paths when planning official paths through public parks or around businesses, because no matter how neat their officially-laid paths look, those lines of desire will continue to be followed and worn into the earth. Perhaps it’s a manifestation of democracy triumphing when a desire path gets paved over after the fact.
So why do they happen? Sometimes it’s a question of taking a shortcut from one building to the next, or from one corner to the next. Sometimes they are made out of consideration for others: During the pandemic, new lines of desires began appearing, but rather than being shortcuts, they simply ran parallel to existing paths – these were likely an attempt at avoiding proximity with others when passing on a side walk. Desire paths can be seen as the paths of least resistance, or as a silent protest against being told where to walk or how to get from points A to B. These paths have been seen as symbols of rebellion, anarchism, individual creativity, intuitive design, opportunities to take fate into one’s own hands even if treading the expected nine-to-five otherwise, or even as a passive aggressive reaction against authority.
Many languages have their own terms for desire paths or lines of desire: In Dutch, they’re known as “elephant paths”, and in French, they’re known as donkey paths, while the Germans, pragmatically, call them “trample paths” (so unimaginative!) But the diversity proves that desire paths are a universal human tendency.
Some businesses or schools, such as the University of Michigan, waited until students and staff showed them where paths would be most appreciated before paving them in; the aerial view (Google Earth) over the campus shows the intricate weave of the lines of desire that would likely not have occurred to the landscape architects:

I’d encourage you to take a walk, keeping an eye out for those lines of desire near you; if you’d prefer not to go out, then take a virtual walk – google the term “desire paths” in the image mode, and see just what pops up! Enjoy!
Personal update:
For those of you following our situation, I will say that the day after my last update everything got turned on its head once again! Chemo has been delayed another 3-4 weeks, as my husband ended up in emergency again, and they finally decided to rebuild his stoma before starting chemo. He’s now back home after over a week in the hospital, and is gaining appetite, and hopefully gaining weight again now! He’ll have a couple weeks to recover before the next phase of his treatment takes off… that’s as of THIS moment. Planning further ahead than a day is a bit pointless right now, so it’s a wait-and-see game…