I can talk to toddlers but can toddlers use a computer? Nope. So I think I can also talk to teens who can talk to a computer. But there is only one means of guessing age here: Parsing the text for tik-tok talk or teen slang. So far nobody said to me: Hi, I'm a 13 y.o. Kevin-the-impostor and want to flirt with you. That didn't happen probably becasue I am of no interest to those. But that doesn't hinder adults to impose as teens. Social interaction is a minefield.