I am the wife. I drive the coach, 40' + towing a small truck. I have been the exclusive driver since DH's last serious heart event. He has driven it about 500 miles in the last 5 years. He may drive it on short hops. He always parks it, says I give him better directions for backiing. It's no big deal. Prior to that, I always did the "high stress" driving, i.e., road construction, mountains, cities.
If I didn't drive, we'd be sitting somewhere. As it is, we full time and we go when we want. DH does a great job of navigating from his netbook/Street Atlas.
I'm a firm believer that everyone in the coach should know how to drive it.
Dale
