To be honest, I don't think it is a good idea. A lot of nudists are hard-core and to them it is a way of life rather than an opportunity for humiliation. Don't get me wrong when I went onto a nudist beach for the first time with my exwife we were into swinging and she was into exhibitionism, but being nude in public was a great buzz for us. We were in Majorca so being nude was not a big thing for the natives, but for us it was a bit of excitement. We got talking to lots of different people, I suppose they could tell we were newbies, probly down to my raging hard on and her bullet like nipples. We went there for the next few days and it got easier and easier. We had a few encounters in and amongst the rocks, but mostly just laid there chatting to the other beach goers. As for cages, I have yet to see any. Maybe if you got used to the people around you they would get used to the idea if you asked around.
The first photo is on our way to the nudist beach with a couple we met on the plane. The rest are from various nudist areas we visited, some designated some not