Do you have any concerns around safety? What kind of safeguards will you put in place? For example, you might ask the user to keep still, but what happens if they suddenly turn/move their head just as the clippers are going in? Personally, I'd be as still as a statue with robotic clippers coming towards my face, but I'm sure people would get used to it eventually and react to loud noises outside, their phone ringing etc.

> we may even go easier and start with neck fuzz

Surely nobody is going to pay just to get neck fuzz alone shaved off?