All kidding aside, are painters whites a requirement with you pros?
...It's just what we wear! They work well, and identify you as a professional.
I use the brand you can't say on VB, but there is at least one other brand in my local market.
Makes things easier in the morning...
I grab a white shirt after I put my white shorts on, then I put on white socks and white tennis shoes. Grab a white hat on the way out the door. There's a white jacket in the truck if needed.
Not too much time spent thinking about if this clashes with that when I'm meeting a client to discuss color schemes.
It's been pointed out elsewhere that other painters may be impressed with a well used set of whites, decorated with the last 20 tones applied, but when meeting clients, a fresh set of whites is the way to go. Looks better.
It's a Forrest Gump deal... One less thing to worry about.