A bar mitzvah is a Jewish coming-of-age ceremony for boys, typically held when they turn 13. It marks their responsibility to observe Jewish commandments and participate in religious life. The ceremony often includes reading from the Torah during a synagogue service, followed by a celebration with family and friends. A bat mitzvah serves a similar purpose for girls, occurring at age 12. Like the bar mitzvah, it signifies the girl's maturity and commitment to Jewish traditions. The bat mitzvah may also involve a Torah reading, although customs can vary among different Jewish communities.