#36: Shoes Off

Taking off shoes at airport security, though not exclusive to the United States, has become a common practice there due to heightened security measures implemented after the September 11 attacks. The need for rigorous airport security led to implementing the shoe removal policy, which aims to detect concealed threats.

While this practice has been adopted in various countries to varying degrees, it remains associated with the U.S. due to its initial introduction and rigorous enforcement. Americans have adapted to this security procedure as part of their air travel routine, which has become a recognizable aspect of airport experiences in the country.