Who goes to heaven?

Someone told me the other day that the idea that everyone would go to heaven was sad.  She thought the idea made her life futile.

This is what I believe.  Everyone is a beloved child of God.  His ultimate plan, I think, is that everyone would join him in the Kingdom of God.  Far from it being sad that everyone would end up in heaven, it would actually be a time of rejoicing, as God's purpose and love for the world would be somewhat fulfilled.