#holograms

Considering the all-round difficulties so many parents have finding reliable babysitters for their children, especially on short notice, you just know that in the Star Trek era, holositters are getting regular, heavy use. They all look like Mrs. Doubtfire (for some reason), and they're always available to watch your children on short notice. They follow your rules to the letter (sometimes annoyingly so), never get tired and never need to pee. Just beware with older kids--inevitably, they learn to hack the holositter's programming, and that's when the honeymoon ends, you're back to needing actual people again, but it was nice while it lasted.