Statistically the most common wear for working in the world is a Mankini.
They typically wear food preparation clothing, they are chefs. Most places I go wear white chef's coats and something on their heads. Most wear dark pants and comfortable shoes.
during the civil war workers would wear boots, apron, overalls, gloves
Road workers will usually wear a neon yellow jacket but depending on what they have they may wear a neon green, yellow, or orange jacket when working.
turtles.
A tabard
the hospital workers have to wear name tags because people need to kno if they are fake or if they actually work there!!!!!!!
yes
pillow cases
black
People,soldiers,workers,cowboy.etc wear hats.
Yes, plumbers are required to wear hard hats while on the jobsite in the state of Illinois. It is a requirement of most states to have hard hats on all workers on jobsites.
Many Hawaiians still wear aloha wear, but most of them who wear it work in the tourist industry. Others like lawyers, teachers, and office workers still wear the regular suit and tie like most North Americans, although they might add a aloha tie or shirt. Mostly tourists wear these shirts, though.