Some wear uniforms, many wear whatever you choose.
machanix.com is a a website that specializes in high quality wear for a Mechanic. They offer a variety of protection wear including gloves for high performance work such as mechanic .
Brakes wear and require maintenance. They should always "work as well as they used to". When you detect a change in the braking have a trusted mechanic inspect them asap.
a mechanic, and an oil rigger must wear Coverall outfits. these will serve as the protection when you are in your work place.
You probably will have to fill out work orders daily or at least for each job.
Yes, auto mechanics does have to finish schooling to be a licensed auto mechanic. You don't have to have schooling to work as a mechanic but if something goes wrong with someone's car then you would be liable like a licensed mechanic.
enviroment for auto mechanic?
If your boss asked you to work for free today what would you say?
Tools would be a good start. And a couple of Haynes manuals.
I think a vet would wear a lab coat, at least when working with an animal
No, you do not. However, it would be beneficial to work there because you already know a lot about their bikes.
No, If the mechanic is an employee and you were liable for his injury he would have to be covered under work mans comp. If he was hire for service then the mechanic would be covered under his own commercial insurance or his own personal medical insurance policy.