Why do painters wear all white when painting?

Recently had rooms in my house painted and the painters had on white shirts and white paints....Didn't want to bother them by asking them but why the white when you already know paint is going to get on you and your clothes........I saw colored paint all over there shirts and pants... I also was driving down... show more Recently had rooms in my house painted and the painters had on white shirts and white paints....Didn't want to bother them by asking them but why the white when you already know paint is going to get on you and your clothes........I saw colored paint all over there shirts and pants...

I also was driving down the street and saw painters painting a building and they too had on white?

I'm really trying to figure this out....
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