Culture matters.
https://www.good.is/money/france-lets-you-disconnect
> In France, if you’re a company of 50 employees or more, you cannot email an employee after typical work hours. The labor law amendment has come about because studies show that in the digital age, it’s increasingly difficult for people to distance themselves from the workplace during their off hours. This new provision allows people to get the full advantage of their time off.
> “All the studies show there is far more work-related stress today than there used to be, and that the stress is constant,” Benoit Hamon of the French National Assembly told the BBC. “Employees physically leave the office, but they do not leave their work. They remain attached by a kind of electronic leash — like a dog. The texts, the messages, the emails — they colonize the life of the individual to the point where he or she eventually breaks down.”