However, the data is in and it proves that the "productivity is up across the board from people who work from home" is, in the majority, bullchit!
Haven't seen the data or anything saying that. There are plenty of businesses where the entire staff works online - like THIS SITE. My sister has worked for a medical records company for fifteen years - every single employee has always been online. IMDB - the original Internet Movie Database, in its earliest stage, was not only entirely online staff but its first gaggle of employees had never met in person.
I'd say the opposite is likely true - that some businesses are doing worse by letting people work from home, probably because the work itself is not well adpated for home work. Most people I know who write for a living do very well at home, and in fact, flourish there because there are actually LESS distractions.
Otherwise, businesses wouldn't be looking to re-invest in bringing employees back to the office and therefore increasing expenditures.
Oh there's LOTS of other reasons. In my agency, management really has a lot less panache when you can't look at your staff. I've had countless meetings that last LESS THAN A MINUTE - like yesterday - because managment scheduled a meeting that had no agenda.
And it's been mentioned on here, that local eating establishments and so forth have suffered without local employees to patronize them. Office rentals are diminishing, because they're doing things LIKE what mine is doing - allowing for more telework - because keeping a large building isn't a good use of money (years ago, I belonged to a church that realized that - that their biggest expense was maintaining a building that was mostly used a single hour a week - and then for small uses like a church office, the rest of the time. They wisely decided NOT to maintain a "house of God" and opted for renting space or sharing - or creating a building for multiple uses where space could be rented out during the week).
I think there will STILL be a trend toward more telework, as technology and personal sentiment yields to the economy of it. Some businesses that don't trust their staff require a constant camera. I think there's just a feeling among upper managment that distrusts the model - or they just don't have the technical know-how to sustain security, manage that many users online and so forth.