Answer: No they cannot. First, a person must work for a living and provide for his family, and only then strive for the next state. Spiritual advancement should not be fulfilled at the expense of the family.
If you have a family, you have no right to neglect it; your children, wife and parents need material support. You have to work seriously to bring your whole salary home, to the last penny! Only after distributing it to the needs of your family, can you be free to engage in the wisdom the Kabbalah.
What is more, a Kabbalist must work not only in order to provide for his family, but also in order to be connected through his work with other people. He must be grounded.
From the Kabbalah Lesson in Russian 4/3/16