No, there is nothing practical about the lionheads.
BUT, they are beautiful and have great personalities, so they are perfect for the kids. Their manes are eye-catching, making them strikingly different from other dwarf rabbit breeds (http://www.lionhead.us/aboutlionheads/standards.htm).
Then, what do you do when another child falls in love with Holland lops? Well, you get some of those, too!
Hollands are social and inqusitive and are quick to bring a smile to your face. (link coming!).