Our 23ss came with them. Walls have stickers where they are supposed to go. I also hang the tags down so we don't forget them.
When we had our PDI the tech mentioned using them. It was his opinion that if a TT came with them and had a spot for them to go ahead and use them. Our slide is the type with the clutch mechanism, so I suppose it might be possible for it to move out in a sharp turn. I have added a 1/4 x1/4 inch "U" shaped wood strip around the sticker so it's easier to put them in place.
@Daisy, I like your idea of laminating the tags, I'll have to to that.
2014 Roo 23SS
2013 GM Sierra CC
Prodigy P3 Brake Controller
Nites Camped 2016 -25