The safest bet is to say as little as possible when it comes to the internet.
Yet there are millions of kids who cannot legally consent uploading to Tiktok et al. I'm so glad this didn't exist when I was 9 years old. I'm not sure how 2020 9 year olds re going to feel about it in 20 years time.
Case in point: I had an ex whose grandparents lived in a mansion on a ranch in the Ozarks, and were very well off (some kind of corporate lawyers). Their public image in the community was one of great wealth and benevolence; due to some bad financial moves, they'd lost everything a few years back and their kids, grandkids, and great grandkids had scrambled to buy the house out from them, a loving gesture, so they could maintain their image. I learned of this secret (which itself isn't really shameful, people make mistakes, even big ones!) after a year or so.
They were both of the "we have nothing to hide," but one day I asked whether they'd like their neighbors to know about their penury; they told me to shut up and mind my own business.
Nothing to hide? Everyone's got something to hide, but for the most part we don't know it, because they're hiding it!!
In this time and age, I find that highly doubtful.
********* see!
Now, tell those same people they'll have to pay a tax based on the destination they choose for holidays, and you'll get them in the streets (I'm exagerating a bit, but you get the picture)...
"I have nothing to hide" implies that everyone should be open to investigation.