Genuinely I've been thinking about a drone that connects to a backpack with a battery in, and just carries my drink for me. How often do you go to a dinner part

Genuinely I've been thinking about a drone that connects to a backpack with a battery in, and just carries my drink for me. How often do you go to a dinner party and you need three hands, right? Or you're scrambling up Scarfell Pike with a latte?