First of all, forcing collaboration onto people by making them sit together isn't proven to be effective. There is no evidence to show it's in the company's bes

First of all, forcing collaboration onto people by making them sit together isn't proven to be effective. There is no evidence to show it's in the company's best interests to have an open office environment. Doing it just because Facebook does is cargo cult thinking. Second of all, it's also against the employees' best interests and pursuit of happiness. Employees should ideally want to choose the sort of office they have, and also be able to work from home whenever they want. Having happy employees leads to the highest productivity and employee retention. I've worked in many different environments, and I dislike open office the most.