We use smartphones for the same reason we don't avoid any non-free software like Stallman: a huge amount of additional possibilities. But what Alexa, Siri etc. offer is just a different way to use a limited set of existing features, in exchange for a much higher risk of a privacy breach.
Everyone needs to draw a line somewhere, I just don't see a reason to use voice assistants, definitely not with internet connectivity and where the company keeps all recordings for some reason.
They keep all recordings because they train their voice recognition off them. GOOG-411 kept all recordings too, for the same reason, as do hundreds of other services, but I don't recall anyone caring about them.
Google gives you a UI to view and delete your recordings and suddenly they're monsters.
Everyone needs to draw a line somewhere, I just don't see a reason to use voice assistants, definitely not with internet connectivity and where the company keeps all recordings for some reason.