>1) It would definitely be slower than not having that dialogue at all (the less UI elements - the simpler).
>Do you remember that typical user visits Google web site NOT to setup his privacy settings, but with a totally different goal (such as do web search)?
I mean have you seen the current dialog you get when you get on a google domain with a "fresh" session? It's a wall of text with a scrollbar redirecting you to multiple other pages if you want to see what exactly Google collects. It's also pretty unclear what each link leads to and how to opt out of everything. Clearly they didn't really optimize for simplicity here, they're the only ones to blame for that.
I'm perfectly aware that people don't go to google.com specifically to setup privacy settings, and that's precisely what Google is counting on. By using an unnecessarily complex interface they hope that people will give up immediately and accept whatever Google is pushing.
>In order to form a reasonable opinion on that cookie choice -- I personally spent multiple hours (if not days) of reading and thinking.
Well that's your choice, my modus operandi is simpler: I systematically refuse everything I can refuse. That's quick and easy. I have yet to witness any degradation of my browsing experience.
I'd be curious to hear what kinds of dilemmas you've had while reading the terms and conditions that lead you to days of thinking.