AI personal assistants sound great, until you look at the user journeys for the evil personas – spammers; phishers; identity thieves; various fraudsters, hucksters, and grifters; organized crime; corrupt officials; zealots of various beliefs; bureaucrats in totalitarian regimes, etc.
When the efficiencies gained by a technology are hard to get, understand, or use, they tend to be used by the well-meaning, but when they become easy, the worst kind of people get to use them, too.