How do Jewish celebrate birth?

Answer:
There aren't many traditional ways of celebrating birthdays. Some throw lavish parties, others do nothing. There is one particular birthday that almost every Jew celebrates, however. This is their bar/bas mitzva. At age 13, boys celebrate their bar mitzva. At age 12, girls celebrate their bas mitzva. At that age, a Jew is obligated in keeping all the mitzvos (commandments).
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