I'm not sure I got it right. Is Google going to be scanning all my conversations to give me suggestions on what to say next? Really? I understand the price of

I'm not sure I got it right. Is Google going to be scanning all my conversations to give me suggestions on what to say next? Really? I understand the price of things like Gmail, where I get a robust email system in exchange of scanning my emails and mining my data. I got something very good from Google, they got my data. Not the best of the deals I ever made, but it has (had?) a strong appeal. On the other hand I don't understand this Allo thing: There's no appeal in the smart assistant, it doesn't bring anything I want to have.