A lid for use with a beverage container. The lid has a body with a drink opening, a drink opening stopper operable to transition between a closed position and an opened position, and a lock actuator manually rotatable between a locking position preventing the drink opening stopper from transitioning from the closed position to the opened position when the lock actuator is in the locking position and an unlocking position permitting the drink opening stopper to transition from the closed position to the opened position when the lock actuator is in the unlocking position.