"Question: If 7-11 is open 24 hours a day, 7 days a week and 365 days a year. Why are there locks on the doors?"
Because if the store is ever robbed, the employees are allowed to lock the doors while they are being questioned by the police. In fact, I think the police prefer it.
If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.