When can my child become B’nei Mitzvah?

Actually, every Jewish child becomes B’nei Mitzvah upon their 13th birthday (some synagogues celebrate a girl’s Bat Mitzvah at 12). The moment in the service when the child is officially a “son or daughter of commandment” occurs when they are called to the Torah to recite the blessings for the first time. They do not become B’nei Mitzvah before that, but can have this wonderful life-cycle event at any time after that. around this moment.