- because people talk about their trips and vacations
- because people are motivated to work ( example, somebody traveling for a month teleworked for a week to not be way out of the loop
- most people take a long weekend, week, and more rarely, 2 weeks at a time.
The biggest concern from Management is that employees feel guilty, aren't taking enough vacation (there isn't a lot of abuse.) Management actively encouraged one of my 2 week vacations to set an example to show people to take vacations.
Does it work as well as it is advertised? From an accounting perspective, yes. From a not worrying about managing people's vacation time yes. From a team management for meetings / projects - not always - more/better notice could work better. From a people perspective? the same people who overwork themselves tend to not take vacations - so not the best for keeping stress down.