What action is deemed illegal for drivers concerning open containers?

Consuming alcohol while driving is illegal because it poses a significant risk not only to the driver but also to other road users. When a driver consumes alcohol, their ability to operate the vehicle safely is severely impaired due to decreased reaction times, impaired judgment, and blurred vision. This action can lead to accidents, injuries, and fatalities, which is why laws are strictly enforced against it. It is important to maintain clear boundaries regarding alcohol consumption and driving to enhance road safety.

In contrast, having an open container in the glove compartment or transporting open containers in the trunk may have specific regulations surrounding them, but they do not directly impact the act of driving. Carrying passengers with open containers also has guidelines but does not equate to the immediate impairment posed by consuming alcohol while behind the wheel. Each of these alternatives relies on context and may be permissible under certain conditions, thus highlighting the clear distinction in legality between mere possession of an open container versus consumption while driving.