I suppose this is contingent upon the situation, the context of the conversation/material and the personality and critical thinking skills of the child. Though, overall, I am of the opinion that parents should be able to talk to their children openly about religion as long as they do not force and coerce beliefs and allow for ample room for questioning, exploration and rejection.
And I would submit that waiting until a particular age (which, as you seem to allow, may well vary from case to case depending on development/maturation) is part of :"allowing ample room for questioning, exploration and rejection", given that the mere ability to question/explore/reject religion requires a certain threshold of intellectual development.
Because, as a parent, you want your child to know you.
But once again, what would be lost by waiting a little while for your child to get to know
this particular part of you- the part of you that accepts certain religious truth-claims and rejects others?
Yes, but, I don't feel comfortable making assumptions about them.
But it wouldn't really be an assumption, would it? If you see people openly expressing as much, then you are hardly assuming it... I mean, pardon the language, but
everyone who doesn't live under a rock is pretty well aware that not everyone accepts the truth of any particular religion, and thus that the topic of religion is far more contentious and less certain than, say, arithmetic or chemistry?
I honestly don't know how to answer this.
Would you say that,
everything else being equal, being taught that X is true, from a young age, by a child's most trusted associates (parents, relatives, church leaders, etc.) would tend to
A. make the child
more likely to question/reject X at some point
B. make the child
less likely to question/reject X at some point
C. have no effect.
It seems to me that B is the obvious answer, although this is clearly not
universally true- just
on average.