Is it stupid to take the subway backwards?

Taking the subway backwards is a common wrong operation, so don't judge it by stupidity easily. Anyone may be careless, distracted or unfamiliar with the new environment in life, thus taking the subway by mistake or taking the wrong route. This does not represent a person's IQ or ability level, but a common wrong behavior.

Subway is a form of railway traffic, which refers to the urban rail transit system that mainly runs underground. It's short for subway or subway. In order to match the built environment and consider the construction and operation costs, many of these systems may be transformed into ground or elevated parts outside the city center.