Pagan here. I have zero problems with my children browsing atheism forums. You can learn a lot there even though their outlook is surprisingly limited in some regards. One only has to glance at some answers here.

But mainly, I want them to appreciate and respect our traditions and beliefs because they are theirs to uphold. If we are gone, who will, if not them? Such a connection cannot be forced. Some parents may beat their kids until they finish homework, some might even micro manage their whole career (eg "battle hymn of the tiger mom"). This does not work with spirituality.