The idea is to get tired of sex altogether.
You use digital sex when necessary; you know you're doing it right when you're extremely disgusted with real sex after digital sex; and the need to have digital sex decreases over time.
Why do most men get disgusted after sex ? It has to do with begetting children, because sex is the act of begetting a child. With a child to back up your "disgusting" act, you're no longer disgusted.
Begetting a child outside of wedlock is another discussion altogether. In short: no.
Unless you're really free, you're not really free.