If 7/11 is open all night, why do they have locks on the door.
its for insurance purposes and if something pops up it would be nice to know your store is safe.
In case the store has to close for renovations or for some unforeseen event.
In case they get robbed, or another emergency happens.
Why your eyes fell on them when you know it is open 7/11. Yes to avoid thefts, robberies and for emergency.