I know that this won't help (teens just won't listen, that's what being a teen is all about) but what I'd try to teach a teen is that in no particular order: 1

I know that this won't help (teens just won't listen, that's what being a teen is all about) but what I'd try to teach a teen is that in no particular order: 1. everybody is fucking around and finding out 2. most adults don't really know what they're doing, so don't even bother about other teens that look cool 3. the most important people that you should be friends with, try to look cool for and have compassion for is yourself 4. FOMO is really a thing and induces a lot of people to do very dumb stuff, some of which will be regretted later 5. 99% of what you see on social media is purposedly crafted and fake 6. you don't everybody's approval most of the time, even in life in general 7. most mistakes are fixable, often times you can make amend 8. some laws are dumb but you should follow them anyway because the risks and annoyances in getting on the wrong side of the court can get very bad very fast. If a teen could understand these relatively simple points, they could probably use any social network and would probably chose to use none of them.