I never use public loos anyway, not anywhere, trains, planes or roadside squats.
I have used two places in my 20s and 30s. One was a public lavatory in Southport, on Lord Street. Immaculate, fresh flowers, highly polished brass fittings and sparkling taps, a freshly laundered hand-towel for each visitor and comfy chairs to sit and feed baby with a changing table which was wiped over by the uniformed attendant with a Milton soaked cloth after every use. She might even offer you a cup of tea if you left a few pennies in her tips saucer.
The other place was the train station at Victoria.
An attendant handed out freshly laundered bath towels and a cake of soap if you wanted a bath, or hand towels for use after the lavatory.
Those kind of places are long gone and sadly missed.