Why? lol. I manage a Toyota parts dept. I was “essential” I didnt miss a day through covid. Folks had their choice to work from home or not during the shut down.... I could not force them. I had folks that worked in person and those that didnt. The amount and quality of work done in house is unquestionably better...period.
Depends on the job role, don’t make an absolute statement.
Heads-down coders flourish working from home.
Less conversations, no commute time, coffee at arm’s reach...
and getting to work straight through till 11pm finishing that new feature or fixing bugs.