I wish there were dead giveaways. It would be helpful to know if I'm talking to a teen or an adult cuz my attitude in delivering how wrong they were would definitely change. Certainly i can recall some truly boneheaded beliefs i have discarded through the decades so im more forgiving if i know they're young.

On the other hand if they're pretending to be an adult they ostensibly want to have their opinions considered on equal terms, as peers; basically to not be preached to. If that's their goal then isnt it kinda the point to treat their ideas as if they were offered by one? If we think of it like that, maybe it's not super important to know someone's age. It's definitely helpful of course to know who youre dealing with but the downside of anonymity is also its upside. ideas are ideas no matter how old the brain is what thinks em.