Remote workers can often get some budget for a coworking space. Not enough to work there every day. But enough to get out of the house every once in awhile.

There is also just the contingency aspect of it- I had a scheduled power outage in my building when I was working remotely, I could either take off that day, or just find a coworking or other space, but I chose to try a coworking space. Power outages may not be common, but there were also days when I had family in town and such, and just didn't want the distraction.