Regarding lack of bathroom:
We selected our 17A (instead of a B model), because, as long-time campers more than just travelers/sightseers, we are outside our trailer except at night or very inclement weather. The porta-potty, stored in a cabinet under the permanent queen bed (with the comfortable 8" mattress
), is perfect for nighttime, so we're not making the trek to some restroom/outhouse building at the other side of the camp ground in darkness.
If we need a shower, we go to a campground or other facility with showers. Here in California, if you're camping at some of the State parks that are dry (no hookups, pit toilets only, etc.), you can use the shower (and other) facilities at nearby State parks, just by showing your camping permit/pass.