21. The Little Brushes on Escalators Aren’t for Cleaning Your Shoes
Those yellow or black brushes running along the sides of escalator steps look like they’re there to polish your shoes or keep them clean. In reality, they’re safety features designed to prevent clothing, shoelaces, or bags from getting caught in the narrow gap between the moving steps and the stationary side panels. They act as a gentle barrier that brushes away anything that might snag.
If you’re over 35 and have ridden thousands of escalators in malls and airports, you’ve probably never given them a second thought — or even stepped too close on purpose. Suddenly those brushes feel like silent guardians instead of random decorations. One more everyday object quietly working overtime for your safety.
