Because it's part of their belief
It is not compulsory to paint your hands in other words put mehendi on diwali . its an option and people do put Mehendi on the eve and happiness of festival .It is meant to be auspicious.
weddings
They usually hold it in chapels or churches
Take a paint brush, buy a can of white paint, and paint your hands and feet white-as-can-be! Happy painting!
did the cherkees paint their faces
The ring is usually dropped at weddings because the bride or groom is nervous to get married. Then, their hands sweat or they have no grip because they are so nervous so the ring tends to slip out of their hands.
no they did not....
Indians did paint their horses.
The hind u brides in India have artwork done on the palms and hands , that our artistically done it called mehendi.
Liquid Red Nirma Drawing Alta (ink) is mainly used by girls and women in India to decorate their feet and hands for special events like weddings and other festivities. It requires very clean lines of application, and dyes the skin for up to a week without additional application.
rocks and paint
In some Asian cultures, such as Japan and South Korea, people may bow instead of shaking hands as a form of greeting. Additionally, in some Middle Eastern cultures, it is more common for people of the same gender to greet each other with a kiss on the cheek rather than a handshake.