[supernes]

Convenience and coercion - they don't want to fiddle with external devices just to watch a movie/show, and streaming services deliver content at a higher quality to these locked-down devices. Had this talk with my parents recently, privacy is infinitely less relevant to them compared to the ease of use.

[lstamour]

Also, the screens spying on you and showing ads are often very subtle about it. They don't tell you every time they take a screenshot, they don't make a loud "click" sound, they don't advertise it. They're not even legally obligated to do anything other than tell you about it in buried legalese. LG will say you need to agree to new privacy terms so that you can use the "microphone" button on your remote control, for example. I persist in ignoring that one, but I'm sure others wouldn't and haven't. Amazon lately has been blatant with how much advertising is ruining their services and sticks, to the point where I don't go to Amazon to search for products now, they've just ruined it. Not every spying, advertising-laden service provider is as obvious as Amazon about it, though.