The problem with 'disconnecting' is that you run the very real risk of being fired and replaced by someone who disconnects less than you. Don't want to pickup your phone after hours at 11pm on a Friday? OK, that's your choice, but it can come with consequences such as being reprimanded, being passed over for promotions or bonuses, being treated poorly, or outright being fired. Unless your skillset and value-adds are truly unique and both indispensable and irreplaceable (not true for 99.99% of us), disconnecting is not an option for those of us who can't afford to lose a job.