That was like the biggest thing i learned in computer class, that i already knew in 2002 or so. Later myspace became a thing, and everyone had a myspace name. Then facebook and some people used their real name. Then facebook asked you for your phone number, and i thought: well, that's silly, who in their right mind would do that. Turns out the answer is everyone.
Yeah I remember the early days of the internet when no one used their real name and we had relationships with dozens of people who we had no idea where they lived and what their real names were.
I don't see what the difference would be in 10 years.
I don't think 90% of people, especially "young people" would avoid doing this already. It's already a major awareness/compliance issue, and not at all a "no shit sherlock" moment.
But what did you have in mind that will be different in 10 years? Paricularly for young people.