Why are mercury thermometers not used in schools and are increasingly being replaced by electronic ones in everyday life?

Because the mercury contained in mercury thermometers is a very toxic volatile metal, and a glass thermometer is easy to break, it is enough to inaccurately “reset” its readings by shaking, when it can fly out of your hands and fall to the floor. Children in schools mistreat mercury thermometers and can be poisoned (although 2 g of mercury contained in a thermometer can be poisoned to death if only all the mercury enters the body). An electronic thermometer, although much more expensive, is much safer, and the measurement accuracy shows the same as that of a mercury one.