How often should drivers expect that blind spots exist?

Blind spots are areas around a vehicle that cannot be directly observed by the driver while looking through the windows or mirrors. These spots exist for all vehicles, not just large ones, due to the limitations of mirror adjustments and the physical design of the vehicle.

Regardless of how well a driver positions their mirrors, some areas around the vehicle remain obscured, making it crucial for drivers to be aware of their blind spots at all times. This awareness is particularly important because blind spots can change based on factors such as the size and shape of the vehicle, the position of the driver's seat, and the adjustments made to mirrors.

Additionally, blind spots do not depend on the time of day or weather conditions—these factors can certainly contribute to visibility issues, but blind spots are a consistent issue that every driver must navigate. Thus, drivers should always be conscious of the presence of blind spots and practice safe driving habits, such as checking over their shoulder before changing lanes, to mitigate the risk of accidents.