90s: stay anonymous, be careful with strangers, don't give up any more info than you have to. The internet can be a dangerous place. Also, supervise your kids and have them ask permission to go online.
2010s-2020s: livestream your life 24/7, use real names and emails everywhere when signing up for bullshit, hand your kid a phone and let them go buck wild as well.
It's also ironic that the same generation of parents telling us to be careful online and "don't believe everything you see on TV" are the same ones that get their news from grifter pundits and divisive facebook memes generated by Russian bot farms.
If you think somehow CNN or MSNBC or whatever is more factual you really should take a step back and have a real close look at the media. Just as anyone who thinks Fox News is ‘news’
They’re all just two sides of the same fucking coin