The most apparent reason why painters wear white is that it makes them more visible against the background of whatever they are painting. This is especially important for painters who are working in public places or who are painting large surfaces.
Another reason why painters wear white is that it helps to reflect light. This can be helpful when working in dimly lit areas or when trying to achieve a certain effect with light and shadow.
Finally, white clothing can help to keep painters cool in warm weather. This is because white clothing tends to be made from lightweight fabrics that breathe well.
Some people think painters, like chefs, wear white to show a mark of expertise. That wearing a white uniform with no blemishes on it after a long day of painting surfaces, shows people how good they are at their craft. Unfortunately, this is probably just a perception rather than a reason.
So there you have it! Three good reasons why painters often choose to wear white.