Definizione e Significato di "on the sidelines"

What is the origin of the idiom "on the sidelines" and when to use it?

The idiom "on the sidelines" originates from the world of sports and games. It refers to the position of spectators or individuals who are not actively participating in the main activity. People on the sidelines observe from the periphery without directly being involved in the action, providing commentary or support. Over time, this sports-related expression has been used to describe individuals who are not actively participating in a situation or are not directly involved in an issue but are observing, commenting, or offering advice.