The ability to say, "Google, text my wife and tell her I will be home after 8", is truly invaluable while driving.
Alas you get a lot of extras to go with it: An algorithm decides that you then must be hungry so ads for Arby's (they really can't rely on word of mouth) keep popping up in your navigation.
After three such messages an algorithm decides your wife might be in the market for a divorce lawyer, because in 50%+ percent of the cases this might be a sign of marital disagreement. Your wife's newsfeeds change just a little because she is now deemed pro-divorce with messages about huge settlements and divorce horror stories, because those keep people engaged.
Safe driving...
Two nights ago, I had Maps tell me "turn right after the McDonald's" because there was a McDonald's at the corner.
I think you're sort of... following a slippery slope argument past what is reasonable expectable.
As what is reasonably expected (an this is old): https://www.forbes.com/sites/kashmirhill/2012/02/16/how-targ...
It is not a slippery slope argument, because they have that data and can use it as they see fit. I just suggested 2 ways in which Google can make more money with information people shared with them. Why is it reasonable to expect them not to do it?
on the desktop app, I don't see ads, but I see an option to "Show nearby restaurants". If I click that, the map zooms out and shows me nearby restaurants, not ads. It's all informational, not selling me something. In my work computer, I don't have uBlock Origin installed.