It may not be known to everybody that initially Srila Prabhupada wanted to follow the classical Vedic system which doesn’t permit women to live directly in the temple. It is understood that women can practice Krsna consciousness while being sheltered by their family members and their husbands in their homes, having the temple as their place of worship.
That didn’t work for Srila Prabhupada in context with the western “culture”. The girls coming and serving and joining in increasing numbers had no home to go to when they began to practice Krsna consciousness. And so Srila Prabhupada did something which earned Him criticism even from his godbrothers. He allowed girls to come and reside in the temple, He personally got them married, and He invented the word “brahmacarini” for those who were not married yet.[...]