Bar and Bat Mitzvah to the event. However, this does not delay the onset of rights and responsibilities of being a Jewish adult which comes about strictly by virtue of age. The obligation to lay tefillin begins when a boy reaches bar mitzvah age. The common custom is for the bar mitzvah boy to begin putting on tefillin one to three months before his bar mitzvah. This way, by the time he is obligated in the commandment, he will already know how to fulfill it properly. The first mention of a party associated with a synagogue bar mitzvah was in the 13th century, so
Bar and Bat Mitzvah North America has struggled over the bar/bat mitzvah. At one time, this ceremony was on the verge of extinction in Reform congregations. Most of them preferred to replace bar/bat mitzvah with confirmation, which they considered a more enlightened and appropriate ceremony for modern Jews. Yet the enduring popularity of bar/bat mitzvah prevailed and today, in our communities, bar/bat mitzvah is 'virtually universally observed' by Reform Jews." In 2012, concern about the high post-bar/bat mitzvah drop out rate led the Union for Reform Judaism to launch the B'nai Mitzvah Revolution, an effort to shift Reform congregations away from "the long-held assumption