Q: Why Won't Directions Quit on Watch?

The directions automatically quit on my Apple Watch when I arrived at my destination before watchOS 3. I am used to that behavior so it is often a long time before I use my Watch again and find that direction are still running and using power.

Is there a new preference or setting to change this behavior back to the way that it used to be?

Why would you want the directions to remain on the watch after you arrive and quit directions on the iPhone?