Seems to me like the big tech companies are way ahead anyway. Google probably has enough data collected to know whether someone (or something) is eligible to watch a video. At least they distinguish based on network, maybe behaviour and in doubt they'll force me to log in and present my session cookie. That's all bad for privacy as is.

I wouldn't be surprised if they follow up revamping the captchas. Maybe in the future it won't make you click on pictures with an omnibus in it, but directly talk to the Chrome browser on your device and make that (or some hardware chip in the computer/phone like a TPM) verify you're a human. Of course that one might as well contain a unique ID and an advertiser ID... I think I read on the news how they're considering to redo the captchas. Not sure if it's going to end up like that. But my best bet is it's gonna be bad in some way or another. Perfect opportunity to tie something down for the users, remove use-cases that aren't consume only, and track them some more.