My wife and I are best friends, among other things. The few areas of disagreement are small, and that does simplify things. In terms of religion, I consider myself an atheist, but not a militant one insofar as I am not interested in converting others to my views. My wife concedes the possibility of a deity or something, call it what you will, but certainly has an aversion to organized religion.
After considerable discussion back in the day, we raised our daughters without any "churching." You may wonder, if you have not tried this yourself, if it is possible to raise your kids with a sense of morality without religion. In our experience, yup it is. Our daughters are compassionate without being naive, and intellectually curious without being accepting of nonsense. In terms of sexual morality, our experience is that this is not totally dependent on religion either. We raised them without an insistence on chastity until marriage, as that is pretty rare these days. Yet they strongly oppose promiscuity and the cheapening of relationships that accompanies casual hookups in current culture.
All this is not to say that their lives will be trouble free in the religion area. Hey, do you know anybody who can claim that? There is this issue of peer pressure and getting along in society. Our daughters seem to use their judgement well there- our youngest has mastered the head nod without saying anything, the change of subject, and other strategies of avoidance. They both will argue a point when confronted with religious intolerance- and I think that is proper. But they also generally keep their mouths shut on the topic of atheism or agnosticism when religious people are around, and that seems wise to me rather than cowardly. It seems civil to me, the habit of avoiding religious discussions with those whose minds will not thereby ever be changed.
The thing that worries me is the question of marriage. I visualize our daughters having to struggle or negotiate religion in their future married situations, should their husbands be more in the religion mode. How to raise the kids? What to tell the mother in law? Let's face it, religion is up there with money and poltics in terms of couple stress. I have to sort of laugh at myself on this one. Just think how many millions of parents out there are terrified that their kids will marry someone of the WRONG religion, or marry a pagan. And here I am worried that ours will marry religious folk. It's a funny world.