If parents want to bring up their kids with really shoddy theology...
There are something like 4,000 world religions.
There are something like 40,000 sects, denominations, or branches of Christianity!
What empirical evidence can you use to evaluate the (often) conflicting claims?
Perhaps, as Heinlein said, theology is like looking in a coal cellar at midnight for a black cat that isn't there?
Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.