depends what coat it is.
It depends on where you live. In most places you do not have to wear a coat, but it will keep warmer if you do. In a very cold climate, it can be essential to survival to wear a coat.
A rain coat
Peti coat
You can wear an apron.
You can wear a light peddy coat or a north face Hope this helps
Some do, most doctors wear a white coat. I guess it depends on the office.
A sport coat is considered casual wear by some. Today's modern designers consider many other coats to be casual wear: Trench Coats, Rain Coat, Fleece Coat, Jean Coat.
it was a blue long coat
Because he was a blue coat
yes they were a lab coat to do everthing
Coat, cap, corset
they wear a white lab coat so that they can see if they have got any chemicals on them