I thought I’d be irritated having to pay 1~2 euros for the public toilets in Paris. But the fact you can tap your card (no change needed) and the bathrooms are clean, with toilet paper, soap, hand towels & attendants actually makes it pretty great. As someone who periodically has stomach issues, it’s also anxiety reducing (there are places you would not want to be stuck for a prolonged period…!).
Although I say this from the privilege of not having to worry about spending several euros.