We haven't discussed hell here. I don't believe it in personally.
My kids have experienced death and the way we look at it is that's just where your soul/spirit goes. The part that makes you you. So they don't really think we'll all be walking around up there hanging out. More our energy/love/spirit I guess. That good feeling from a loved one's hug. That's what they tend to think a spirit is.
That was very comforting to my kids. So when we remember someone and we get a warm rush of love, to them - that's what heaven is about. Those feelings. Not so much a place, but all that love gets joined up. Anyways - they think loved ones who have passed are here all the time with us. Just that love-energy.
So hell wouldn't really make sense to them. My kids have never brought it up. I think they would just think it's something archaic from the bible stories. My kids go to church camp and know the bible stories - but I think they just feel they are lessons - not actual things set in stone. Just the message.
Hell is a concept in other words - that's how I would approach it.