What is the rule regarding visual obstruction during free throws?

The rule regarding visual obstruction during free throws emphasizes that players must not cross the free-throw line until the ball has touched the rim or backboard. This rule is in place to ensure that the player taking the free throw can do so without interference or distraction, maintaining fairness in the game. If players were allowed to cross the line early, it could lead to unfair advantages or distractions that affect the shooter’s performance. Therefore, waiting for the ball to make contact with either the rim or backboard is critical for upholding the integrity of the free-throw process and ensures that all players respect the shooter’s opportunity. This keeps the focus on the free throw and allows it to be executed as intended without intrusion from players in the lane.