\I don’t think everywhere the Jews are making this to be the big deal and welcoming into the faith that it should be.\
Jewish girls are “welcomed into the faith” simply by being born. Jewish male babies are initiated into the covenant by circumcision. The very name for this rite, “bris” means "covenant."
||The bar mitzvah has to have learned to chant the Torah portion for the day (in Hebrew, naturally) and gives a thought on it (kind of like the homily), so the ceremony does celebrate that he’s made the effort to take on the responsibilities of adulthood.||
**The only “ceremony” is a special blessing when the new Bar Mitzvah is called to read the third reading (Torah and Haftora) on the Sabbath after his 13th birthday, because, as I said, he automatically becomes a Son of the Commandment, with the responsibilities of observing the Jewish law, at that age. (For girls, it’s 12 years and a day.)
In short, bar mitzvah is NOT the equivalent of Confirmation.**