Really, it all pretty much depends on who you ask. I've had folks who swore they'd seen everything and couldn't be shocked anymore go "what the... EWW" when I told them, while others were just "huh, that's a bit unusual, alright". We're definitely not 10 on the weirdness scale, but not all that low, either. I'd say 5-8, depending on who you ask - there's a huge amount of people who'll be MAJORLY freaked out by the thought of voluntarily wearing diapers.