Last night my 10-year old daughter said that she did not believe in God.

[The Grand Nudger]

Children are unlikely to come up with the dead jew on a stick all on their own.  Without some figure of authority or credibility asserting as much, it's probably not accurate to call the situation neutral.  That's how I ended up an atheist too, in all likelihood.   I was introduced to too many stories without overt or implicit confirmation of any given story, so they've always been and remain stories.  The faithful know this, which is why they very openly stress that a believer ought to tell their kids about christ early and often - otherwise the faithful parent is manufacturing the unfaithful.

Just my two cents.

Of course no one is going to come up with Christianity with no indoctrination whatsoever. I've always felt that lended atheism an air of credibility that religion doesn't have.

But, at the same time, lots of stories flying around. Turns out, some kids, raised by atheists may come to believe, via social transmission or they just pick up the holy book and it turns out that it speaks to them. I wanna say that's fine. I think atheism is "better than" needing indoctrination to propagate itself. "Playing neutral" is not just a good idea for god beliefs, IMO. It's the best policy for any non-basic belief about which the child should make up her own mind. God-beliefs just fit the bill nicely here.

For instance, I wouldn't raise my kids to be hard incompatibilists (even though that's what I am). I'd allow them to choose freely whether they accept the theory or not.

I guess I phrased that too narrowly.  People don't come up with theism of any kind, on their own.  Took us tens of thousands (or hundreds of thousands- depending on when you start the count) of years to arrive there - and it was very certainly a group effort.  My kids don't seem to believe in theistic gods either, and The Wife and I did a similar thing.  They are, still..though, natural animists and supernaturalists.  Sure, they get it (it being christianity, here at least, something else elsewhere) from their peers - but if that were enough then we'd all believe in gods and the faithful wouldn't have very accurately realized that early indoctrination is key.

I'm not commenting on whether or not it's a good thing to raise a child a certain way (I think it's not good that I didn't stress my own beliefs, and that The Wife didn't - for example).  Just pointing out that it's not really neutral to avoid indoctrination when active indoctrination is the definite and relevant article. If you realize that a particular thing has to be done to realize some outcome, and you decide not to do that thing - you've taken a side.

It's probably useful to point out that I draw a line between religious principles speaking to someone and people believing in things like gods. Religious principles speak to all of us, good or otherwise, and they're not really premised on belief in fairies. They're premised on how we believe the world should be. It's uncommon for a person who loses their faith in the bloodgod to then rethink their religious principles. Just not how it works. They still think those declaratives are true, they just don't need them to come from the mouth of a ghost to seem authoritative - and in that sense, there's no change at all - they never did.

As I've commented on before, gods are free riders. They don't lend or build the credibility of the other thing, they consume and benefit from it .