My impression is that (in the main) younger people have lower privacy thresholds than older people. Not for everyone (of course). Just on average.

My impression also is that most early adopters of this kind of technology are younger people. (again: mostly)

So this brings up an interesting question about the future. As the young early adopters age, what will happen?

a) their privacy thresholds will also increase and they will have a "oh holy crap" moment in the future, where as a middle-aged or older person, who has lived a now much richer and problem-laden life, they will realize that google (and/or other co's) have what they consider now, as too much personal information about them,

or

b) they will keep their young-ish privacy thresholds as older people, and in general, across society, people will have lower thresholds than exist nowadays. In other words the world will change.

My money is on a)