It's more complicated than not having reservations -- younger people share more online but are also more likely to take steps to protect their privacy:
https://www.vox.com/2016/11/2/13390458/young-millennials-ove...
You can find what you want in the data, but my personal read is everyone does what they have to do. Older people have the option of just opting out without losing access to their community (how much social capital are you losing by not checking out that link?), while younger people have to engage in order to be part of their community, so they get more exposure to what can go wrong and take more risks but also more steps to protect themselves.
If you're engaging with people of a different generation I'd strongly encourage taking this approach -- if I assume you're making smart choices about dealing with the social system you're in, rather than doing something dumb, what does that tell me about the situation you're facing and what kind of support you might need?
This quoted bit below says it all:
"But when I poke through 10 years of Facebook, I see something else altogether. We’re not an oversharing generation. We’re a generation that’s over sharing — done, finished, kaput, through. … All the chatty candor and hyperactive disclosure of our early years on Facebook now look like just another kind of youthful indulgence."
All this means is that this person has 'aged out' of their FB phase. What about the hundreds of millions of younger people still on IG, Snap and TikTok?
I realize now, that I did not consider what the site might do while it has access. Maybe a video or pictures of me blinking are uploaded to some shady server somewhere now.
https://github.com/tensorflow/tfjs-models/tree/master/face-l...
here is as a live demo from google
https://storage.googleapis.com/tfjs-models/demos/face-landma...
If my daughters are anything to go by you seem to be right. I'm trying to make sure that at least the home network and devices used on it leak as little personal data as possible - router-based content blocking (ads etc.), DNS proxy which blackholes unwanted domains, search through Searx, Youtube proxied through Invidious, Twitter proxied through Nitter, Reddit proxied through libreddit, Nextcloud for "cloudy" things, Exim4 for mail, Pixelfed for photo sharing, Peertube for video, Airsonic for audio/books, etc - but they really don't seem to care one bit whether they're being tracked and profiled by the world and its dog. They don't seem to realise there is no need to allow those companies to leech them for all their data nor do they seem to realise the potential negatives in allowing the leeches to parasitize them. At least they are not on TikTok (which I block at the router), Facebook (the site, one of them uses Instagram and as such still remains within Zuck's clutches) or Twitter.