Office space is expensive. Part of WFH does also cost shift running an office onto employee. Especially if you have kids, you'll likely need a whole other room in your home.
Yeah... Really the average American home is just not set up for 1-2 adults working office jobs. Maybe it should be, but that would result in even bigger (and less affordable) homes.
I have been working remote for same place for 12 years. If needed, I would assume outfit a external shed as an office before going back into the office. When I visit I feel like my skin is crawling -- I can't ever go back.
The office is very nice. I think it is just what I want at this time in my life. I want to be around my family with my dog laying at my feet - not in a corporate environment.