Everybody is different.
I grew up tent camping and my wife and I started out tent camping. I am no stranger to campground and state park showers.
With that said, we bought an RV that came with a full bathroom and we sure will use everything in that bathroom.
I have to say, I am little tired of hearing "I'm a big guy and need my space."
I am 6'6" and 335 pounds and I can easily shower in our TT shower. No, it's not as comfortable as the shower at the Skylofts in Las Vegas, but of course, our Silverado is not as comfortable as the Rolls-Royce Ghost limousine that the Skylofts brings to pick us up at the airport!
RV's were not made for guys our size!