Binding-foot is done in order to have small feet, for aesthetic reasons.
"Traditionally, geisha began their training at a very young age. Some girls were bonded to geisha houses (okiya) as children. These girls were referred to as hangyoku and were as young as nine years old. This was not a common practice in reputable districts and disappeared in the 1950s with the outlawing of child labor. Daughters of geisha were often brought up as geisha themselves, usually as the successor (atotori, meaning "heiress" ) or daughter-role (musume-bun) to the okiya"
"Once Geisha were plentiful in number. In 1900s, there were over 25,000 geisha. In the early 1930s, there were 80,000 geisha. Most geisha were in Kyoto, the old capital city of Japan. Nowadays, there are less than 10,000 geisha left. In Tokyo, there are only 100 geisha left. However, true geisha are much more rare. Modern geisha are not bought from poor families and brought into the geisha house as children. Becoming a geisha is now entirely voluntary, and women who are not the children of geisha can now become geisha. However the training remains as rigourous as before. Young girls have to be very committed to learn the art of traditional Japanese dancing, singing, music, and much more. Traditional Geisha did not offer the services of prostitution, though some modern ones are rumored to"