What are boundary lines considered in terms of in or out of bounds?

Boundary lines in football are classified as out of bounds. This is established to provide clarity regarding the limits of the playing field. When a player, ball, or any part of the body touches or crosses these boundary lines, that individual or object is considered out of bounds. This rule ensures that play is confined to the field area and that any actions occurring beyond these lines do not count in the game. The role of boundary lines is crucial for defining the playing area and determining the outcome of plays, such as whether a completed pass remains valid or if a player is deemed to have gone out of bounds.