> Who chose the open office concept in the first place!?
I always figured zoning laws usually discourage heavy development, so companies are heavily incentivized to use open-plan offices to save on rent.
Here's a listing for 3 offices for 900 sq. feet for $63.33/year, or $55,197/year. Each office might be something like 10% of your fully loaded cost, so a company with at 10 employees is spending an entire employee on rent. https://42floors.com/us/ca/san-francisco/235-montgomery-st?l... .
You could cram them into a box and they would whine, but it might be worth it if you can get an entire extra employee out of it.
Though, there are 3 8-hour shifts in a single 24-hour day, so I'm surprised they don't stagger scheduled times for employees so they can share the same space. I myself usually like starting work at 4 or 5 AM, since there are fewer people around. There's probably way too much social inertia for that in general, compared to spending a few thousand $ on some cubicle walls.
If you can afford more than 10 employees, you're probably quite profitable and the margin on well-run software companies is pretty high, so maybe they don't care about rent at that point.