Since the bar mitzvah symbolizes the adulthood of the young man who undergoes that ritual, it also means that this person is now old enough to participate in all the normal Jewish rituals such as daily prayers, and so forth. The reading of the Torah is an inauguration of what is hoped to be many more religious rituals to come.
A Jewish boy becomes a bar mitzvah when he turns 13 years of age, whether he or anyone around him
is aware of it at the time, and whether or not he or anyone else decides to acknowledge the occasion or
celebrate it in any way.
This can be split into two questions. One: why do we read from the Torah (at all); and Two, why is a Bar Mitzva associated with Torah-reading. Why not mark the young man's age in some other religious manner.
Answer: reading from the Torah is an ancient decree (see the attached Related Link). The Bar Mitzva ceremony includes reading a portion from the Torah (or a haftarah from the Prophets) because this reading always takes place in public. When the congregation publicly acknowledges the adulthood of the young man, it impresses his status upon him and them. Also, the reading from the Torah reminds him that he should learn Torah and observe it; and included in the Torah are all the mitzvos. This Torah-reading, in a symbolic fashion, is as if he's now receiving the Torah at Mount Sinai.
Reading the Torah shows that the boy is now an adult.
Reading the Torah alludes to the commitment to keep its ways and commands.
Torah Portions
The Torah and Haftorah
There are many details associated with a bar or bat mitzvah, but here are three:A bar mitzvah is a coming of age celebration, observed when a boy turns 13 (girls have a bat mitzvah at age 12 or 13).The boy is called to the Torah, either to read a portion, to say a blessings before and after a portion, or both.The bar mitzvah marks the occasion where the boy is fully responsible to fulfill all of the time-bound commandments that an adult must follow.
They read from the Torah for the very first time.
After a girl's Bat Mitzvah, or a boy's Bar Mitzvah, they can then lead the congregation in prayer, and read directly from the Torah scroll.
The Bar Mitzvah ceremony normally takes place in the synagogue on a Saturday morning when the weekly Torah portion is read.
No.
To be called up to the Torah reading.
They have Bar Mitzvah ceremonies for boys & Bat Mitzvah ceremonies for girls.
A boy has a bar mitzvah, and girl has a bat mitzvah. Bar Mitzvah means 'son of the commandments' and Bat Mitzvah means 'daughter of the commandments', which means they are now responsible for their own spirituality.
Bar Mitzvah gifts are not important at all. They serve to show the boy that he is loved (or girl, if it's a bat mitzvah), but they are optional.
The Torah is read in the afternoon on Sabbath, Yom Kippur, and public fast days. If a Bar Mitzvah is being highlighted at one of those services, then the Torah is read. Technically, a Bar Mitzvah in and of itself would not be a reason to read the Torah at a service where it wouldn't otherwise be read.