> Of course, there is a reason for the separation of the closing and locking functions, but not the opening and unlocking functions There’s also a psychologica

> Of course, there is a reason for the separation of the closing and locking functions, but not the opening and unlocking functions There’s also a psychological aspect to performing the separate action of locking. There are trains in Denmark that only have the ’close’ button. Quite jarring the first time.