My headcanon is there's a strict divide between "Caesar's Legion" and "Caesar's territory."
1. Caesar's Legion is the misogynist cult of personality that forms the entirety of his army. It is composed of all the tribals he's assimilated into one single army, their slaves (sexual or otherwise), the priesthood, and the soldiers he's indoctrinated into his cult. It's very much a African warlord kind of situation with children being part of the organization as well as Caesar's fake religion. It's also highly mobile without much in the way of roots.
2. Caesar's territory more or less functions like a "normal" society with every town they conquer giving them tribute in the form of food, weapons, and other supplies. It's not a complete slave state with families, children, and so on. However, all are subordinate to the Legion and their draconian laws. Caesar doesn't attempt to turn all children into Roman worshiping soldiers or baby factories, though, because he knows he needs supply lines and subjects far in excess of his military.
In practice, they are terrified of him and women are forced into subordinate positions.