Bar Mitzvah (From Wikipedia, the free encyclopedia) are Jewish coming of age rituals. According to Jewish law, when Jewish boys reach 13, they become responsible for their actions and become a Bar Mitzvah
The age for girls is 12. In addition to being considered responsible for their actions from a religious perspective, B'nai mitzvah may be counted towards a minyan (prayer quorum) and may lead prayer and other religious services in the family and the community. The age of B'nai Mitzvah was selected because it roughly coincides with physical puberty. Prior to a child reaching Bar or Bat Mitzvah, the child's parents hold the responsibility for the child's actions. After this age, children bear their own responsibility for Jewish ritual law, tradition, and ethics and are able to participate in all areas of Jewish community life.