Should we crate train?

Yes, crating is not cruel; most dogs see their crate as their "den" (doggy condo).  Not only is a crate a useful housebreaking tool, but it gives your Norfolk ( both young and old) a place to call home and get away from it all.  Young puppies often need a break from zealous young owners, and as long as you do not use the crate for punishment, crating your dog for brief periods gives you a break as well. 

Additionally, a crate provides a safe environment for a Norfolk in the house, car, hotel and even airplanes.  An open crate in the house gives the dog a safe den.  Even very young children can learn to respect the dog's bedroom.