One of the most important traditions is male circumcision. Traditionally, it occurred in the late teen years or early twenties and it marked the transition from being a boy to being a grown man. Boys spent six months in the forest learning the secretes of the culture. Now circumcision is held every five years for boys from ages of about five or six to ten or twelve. The period of seclusion only lasts a month and it occurs during school holidays.
Superstitions also persist.
A number of these appear to serve the purpose of reinforcing the separation of gender roles. But belief in some of these superstitions is waning. For many Tiriki, a strong belief in a Christian God is a central part of lives. Quakers from Indiana who established the Kaimosi mission in 1902 were the first denomination to arrive. Now people in Kaimosi belong to other Protestant groups, such as Pentecostal or Salvation Army, as well as to the Catholic church.