Our outside shower is on the street-side and we use it all the time. I recently did a mod to it. I cut off the leaky, bulky shower head and spliced in a kitchen sprayer nozzle. It works great for everything, showering, dishes, pets, etc. What I like is, I turn on the water and adjust the temp and when I need water it's an easy pull of the trigger. I spliced the sprayer in so we could have a little longer hose and also I could not find fittings that matched up to the existing faucet.
We had a curb-side shower on a previous HTT. The kitchen was on that side and they fed off of that water supply for the outside shower. Didn't really use it since it was right next to the door. :h Bad engineering.