There is too much tribalism and cultural diversity. The real test of a church is how much it loves and worships God and cares for its neighbours, not doctrine or interpretation of scripture. Your article gave me a new perspective. I read a comment from a parent who doesn't understand why some Christian parents will not allow their children to play with non-Christians. I think we should be selective about who we associate with and much more protective of who our children associate with.
Children are very impressionable.
We must guard their spirits until they are are capable of guardin it themselves. Children are gullible. They will inevidentably be around some things that we would prefer they not hear or see. As much as possible, we must teach them who to associate with. Yet, their young minds may not always be award of some of the New Ageism used to trap them into things that are of the occult or just not the things that God ordains for us.