Is it inappropriate to invite mostly children of quite dedicated Christians to a Hallowe'en party?
My wife and I aren't religious at all - but both accepting of all and everyone. The area we've moved to has a lot of housing for those studying theism, and a lot of the families we'd be inviting have one parent training to be a priest.
My instinct is that it's fine, but with Hallowe'en only recently being more 'celebrated' (an excuse for a party, I guess) in the UK, I'd hate to offend new friends!