Some do and some don't. DW uses the stuff like she owns a oversize woodlot or something. I almost always use the public washrooms in the RV park where we park. No problem. Other FullTimers here and in RGV RV parks in Texas tell us all TP will breakdown in time and lots of water with each flush is highly recommended.
DW gets the real cheap TP from Wally Mart which is only one ply but tells me - it feels like No. 1 sand paper. BB:R
p.s. Around here folks say "pepper" when they refer to TP. I.E. we're all out of 'pepper'.:h