Does anyone know why painters wear white pants?

They reflect light more accurately, preventing weird color hues from appearing. This way they can verify they have covered everything evenly and thoroughly.

Painters Pants

Painting Pants

I'm thinking its to show experience. I can imagine an interview for a painting job...

Interviewer: How many colors do you have on your pants?

Painter 1: Magenta, Blue, White, and Black

Interviewer: Thats it? I'm sorry but we are looking for someone with a bit more experience.

Versus....

Interviewer: How many colors do you have on your pants?

Painter 2: I don't know. They all kinda mixed into grey.

Interviewer: You're hired! Exactly what we were looking for.

Painters wear white pants because it is easier to bleach out the paint that gets on them. If they wore any sort of dyed colored pants, the bleach would bleach it all out and it would wind up white anyway.

As a painter myself ,the reason why white is worn by painters goes back to when houses were white washed with lime and water, both outside and inside houses, white coveralls were used so when you spilled it on them it could not be seen, the same reason why mechanics wore black coveralls, and people grinding barley wore brown coveralls.

So that they can see the paints that they have gotten on their clothes (it'll make sense, keep reading). They don't want to get paint all over their work. So, the white helps them keep track of spills, leaks, and other messes that could mess up their work. In other words, if you were a surgeon, would you have an OR and scrubs and gloves the color of blood? No, because you wouldn't be able to keep track of where the bleeding was, how much was lost and wouldn't be able to keep a sterile field.

(1) Because it's easier to clean them without ruining the pants/colors with bleach.

(2) Because wearing white shorts was giving them odd tan lines in the summer.

(3) <in a lispy voice> Because the plaid pants started to clash with every other ensemble they tried.

Actually they wear white to show that there are proficient at their work. That is to say that the paint they are using goes on the wall, or whatever, and not all over the place.

To build up a collection of the colors they have been painting with, as a kind of self-expression/self-mural type experiment. Gets their mojo going in the morning.

Either that, or they are part of a bleach testing experiment, and working for clorox.

Most house painting involves painting the walls INSIDE a house. Most walls inside a house are, initially, painted white. Spatter is less noticalble.