Why do you assume that the people concerned about sending this data to Apple, are lax about their data elsewhere?
Not all of us use social networks like Facebook and Twitter, pay for things with credit cards, use a cell phone, drive a car etc.
Maybe he wants to use dictation without contact information? I would think that most dictation use would not need it.
Then the word people would again be a generalization and if you are not part of that then it is not directed towards you.
Yes, You are correct, You can use Dictation without it having access to your contacts, which is why the app
asks you rather than just using them anyway.
You are also correct that not
everyone uses such modern devices but would you also say that a vast majority of people do not use them? That more do not use them than do?
I guess it boils down to, what exactly would I think Apple was doing with. So far, and maybe I am naive but I can't think of a scenario where even if Apple had Aunt Peggy's email address that it would damage me or her, especially if she also allowed Dictation access to her contact information. I don't think I would unfriend her if she told me she had given them access.