WEEK 10 Bonus - ANSWER

Well, people found many, many reasons why Hindus and Indians shave their heads! Here is a smattering:

A rite of passage for children around age 3 in order to divide them from their animal (i.e. hairy, natural) state.

When someone was widowed (male or female)

When a father died, his eldest son would shave his head

To speed up the time to get to Nirvana--each hair shaved was equal to buying one cow for your God!