People actually used locks for fire exits, but not anymore. Why? I’ll tell you why.
There was a famous Chinese restaurant, and people loved to eat there. It was fancy and big and it has delicious food. It had many fire exit doors. But they where all locked. Only the people who work there has the key to open it.
One day, a fire happened at the Chinese restaurant, everyone was running around. People tripped over chairs, and plates and cups shattered on the floor. It was a mess. Many people ran to fire exits, but they were all locked. They looked for servants, but they were nowhere to be seen. They were trapped.
Well, I guess you knew what happened. Everyone had died in the fire. As this story spreads, people stopped using locks for fire exits.
And that, is the story of why people don’t use locks for fire exits anymore.