Be impressed by QR code payment, which we have here at plenty of restaurants and tap to to pay for the rest so you still don't need a physical card.
The stoplight timer is just an app. We have those here as well that shows you the light countdowns, we just don't use them like the the most popular apps such as Waze, Google and Apple Map. As soon as Google or Apple think Americans care enough to have it, they will buy the apps that have the timers and add their algorithms into their maps. Also every light already has a timer because the crosswalk with the other side of traffic has a timer for pedestrians crossing so when that goes to zero, your light will turn green. Tf?
And theres no major city where you can't find a cab at 3am. No there are no robots that are walking with you so I guess she can have that. But who even needs that really? Who is walking alone at 3am that can't just get a cab/Uber if they are scared to?

There are already police cameras on every corner that see down the block to the next camera so what is that doing differently? That little robot not stopping nobody from robbing yo ass anymore than the security camera already will.
I'm sure there's several things she could have brought up that are more technologically advanced than daily Americana culture, but the things that she chose are ridiculous.