"Daddy, I'd like you to meet my children." That's Robbie Castleman's attitude about taking her children to church. She believes that Sunday morning isn't a success if she has only managed to keep the kids quiet. And she knows there's more to church for kids than trying out their new coloring books. Children are at church for the same reason as their parents: for the privilege of worshiping God. Worship, Castleman writes, is "the most important thing...