I'm optimistic actually. I think "Gen Alpha" is gonna be alright and sufficiently wary of Internet sharing and privacy. Unlike the previous few generations, esp. Milleneals and to a somewhat lesser extent Gen Z and Boomers, who have massively over-shared and are now reaping some of the horrible harvest that comes from that oversharing. Today's teens and tweens seem to finally be getting the message.

I also actually think AI might be a savior here. The ability to fake realistic 18+ year old selfies might help put the nail in the coffin of these idiotic "share a photo with the Internet" verification methods.

I otherwise agree with what you're saying, but I think the ratio of conscientious people has fluctuated over time across all generations. It has more to do with what year it is than how old they are.