he wouldn’t advise six year olds to close their Gemaras and study Arizal.
Factual correction for readers who may think that there’s truth in what Qwerty is writing. Let’s break this down:
“study Arizal”
Chabad yeshivos don’t teach kabbalah (Arizal, Zohar, etc.).
They do teach chassidus (the teachings of the Baal Shem Tov, Baal HaTanya, etc.) – much of which is based on kabbalistic teachings, but taught in a way that is meant to be more understood for the common folk (with a proper teacher and background).
“six year olds”
The average Chabad yeshiva begins teaching chassidus to bochurim who are about 15 years old or older. Before that, they only learn Gemara, Mishnayos, Chumash, halacha, etc.
“close their Gemaras”
The average Chabad yeshiva (15 years old and up) has about six hours a day of Gemara and three hours of chassidus (as well as halacha, Chitas/Rambam, sichos, etc.)