Safe nursery school - lock doors or leave them open? Supervisory obligation VS. safe escape/rescue way The educators have to supervise the children and to ensure that the children do not leave the nursery school unattended suddenly standing on the street. In addition, the nursery school should be protected from unwanted visitors and burglars. So lock the main door? At the same time, in an emergency, the little ones must be able to get outside quickly without outside help: the escape route / rescue route must be open to them. And the parents expect that they have free access to the nursery school during the pick-up and delivery times. So don't lock the front door? ASSA ABLOY offers a security solution that meets both criteria!