This is a problem that must be worked out with the men first. Only after men who consider themselves Shomer Torah U’Mitzvos fully accept both in principal and in action the responsibility of supporting their families; should this issue be broached with the women.
Exceptions will need to be made for some men to learn full time and be supported by the community in learning; but those wanting such status will need to first demonstrate a level of hasmodah (diligence) and achievement and get specific permission to learn full time. In the best case, those learning full time will be supported enough that their wives will be able to raise their children directly.