The reason that people wore white wigs is the same reasson that all fashion and style trends started. Because someone famous/popular and admirable started doing it. In this case it was King Louis XIII. At that time men already had long hair which they would pull back in a pony tail; but King Louis started going bald. He felt that his balding would cause him to seem weak or less than manly so he had several powdered white wigs fashioned for him. When the King started wearing these wigs, all people of nobility began wearing them. Eventually it caught on in England, Germany, Russia, etc. The whole trend started just because a man in France didn't like the idea of going bald. :) Hope this answers your question.
yes
gowns or robes
silk was invented in the 1700s. At first woman's petticoats were made of silk. (petticoats are a type of woman's undergarment but in the early 1800 people started wearing capes, shawls and dresses made of silk and even today people wear silk so it originated in the 1700s.
they wore things like woven cloth.
rags
Men wear candora (white dress from cotton or silk made) and women wear abaya (black colored mount)
Victims hid their baldness, and the wig quickly became a fashion icon
yes he did wear a wig like most people in the 1700s-1800s
a coat and breeches
wewerfewr
During weddings the bridesmaids generally do not wear white on their heads. The bride can wear white on her head however, she does not have to.
They wore clothes!