> I guess the problem here is many people publish publicly on the Internet not expecting much of anything. And then after they become notorious they may regret giving up their privacy.

I will definitely tell my kids to never use their real names online. Maybe let them brainstorm an alias they will use consistently, so that their friends will know. Just in case they would want one day to have a fresh start, get rid of whatever haters and stalkers they happened to collect in the past, etc.

Unfortunately, in the Age of Online Advertising, many websites have using the real name as a condition in their terms of service. They will not verify the name when you create the account, but they might do it later if someone reports you. Should I teach them to lie? Should I teach them to use a fake photo? Sooner or later someone will upload a photo with them, and tag them, anyway.

Also, if you use a pseudonym, you better make a habit of changing it regularly, because at some moment someone will dox you.

...and that's with the technology we have today. Maybe in the near future an artificial intelligence will connect everything you ever wrote online, regardless of the pseudonyms or whatever, based on the statistical analysis of your writing, or something like that.