After they become Bar Mitzvah, Jewish boys are responsible for all the commandments of the Torah/Bible. They are supposed to eat kosher food, honour the Sabbath, celebrate holidays, and many more. Many non-observant Jews do not follow all these rules, it really depends on their level of observance. But really, the meaning of becoming Bar Mitzvah is becoming an adult and becoming responsbile for your actions and choices.
put on tefillin go through puberty
They have Bar Mitzvah ceremonies for boys & Bat Mitzvah ceremonies for girls.
Judaism
Yes.
Yes; bat mitzvah is for girls.
13 years old.
Jewish boys have a Bar Mitzvah at 13 years as a rite of passage.
Boys celebrate Bar Mitzvah's and girls celbrate Bat Mitzvah's.
For newborns: Brit Milah for boys; Zeved Habat for girls; At age 3 years (In Chassidim) Upsherins for boys; First Shabbat candle lighting for girls. For Teens; Bar Mitzvah for boys; Bat Mitzvah for girls. Marriage.
The literal meaning of bar mitzvah is "The age of law", which means that from this age on the young adult is obligated in all the laws of Judaism. For boys this is the age of 13 (bar mitzvah) and for girls 12 (bas mitzvah).
A Jewish boy becomes a bar mitzvah on his 13th birthday. This does not require a formal ceremony. The ceremony people are most familiar with is to celebrate the boy becoming a bar mitzvah, it doesn't make him one.
A bar mitzvah (בר מצוה) for boys and a bat mitzvah (בת מצוה) for girls.