I will probably never have personal assistants. But it doesn't stop me from dreaming.
First off, they would meet me at work. I would drive up in my car. I would get out and one would hand me a cup of coffee and get in the car to park it. The other would run my lunch to the lunchroom and my laptop up to my desk.
Then I don't know what they'd do the rest of the day. Maybe they could timeshare with someone else who needs an assistant or two. Besides ironing my wrinkled clothes and getting my car washed, and keeping the tank full. I can order just about anything off the internet, but I still have to drive to the stupid gas station to fill the car with gas. Irritating. I want an electric car.