These type of self cleaning toilets are dotted in the southern suburb parks, where they are a lifesaver for me out for hours on a junk mail delivery.
Most have a time limit of just 10 mins though - to prevent drug use, shooting up, etc, not sure that that is a deterrent.
I've often seen them blocked up with unsuitable items from kids being stupid and have had to call council and report it - each toilet has its own unique number.
There is something similar at the nearest railway station. The one I am familiar with doesn't clean itself after every use but on a regular basis. It talks to you and has a 10 minute limit. It plays the same music every time (What the world needs now....). A measured amount of toilet paper is dispensed and it flushes the toilet for you when you wash your hands (or when you go to leave if you don't wash your hands!) It is like something out of a sci fi movie.
I have since used 1 elsewhere, after visiting a 96 year old friend in a nursing home. also in Melbourne. It really scared me, & I thought I'd be locked in there forever! My husband has now used it twice!
I have used one or two in my overseas travels . . . . I find them quite unnerving for some reason. I agree with Fran . . . . it is weird to come out and find a male waiting to come in. Having said that: the male I encountered didn't bat an eyelid so I suppose if you get used to them it is no different to everybody in your own home using the one loo. I also think it is the "stand alone" look of them that throws us. Most of us probably grew up with stout brick blocks of several loos with male and female sides. However, if it was really a Tardis with a repaired chameleon circuit . . . . . . . woohoo!!