Interesting idea.
The questionnaire needed an option for under 18 and another option for gender.
Also, when finished, it just says powered by survey legend, it doesn't say whether the questionnaire was submitted successfully.

The idea has potential, but I'm not quite sure how it would work, and also the size of a thumb seems a little too small for me, but the idea as a whole could work, and I think there could be a market, I'm not an expert, but people often buy things to prevent against theft, but those products fall far short, often breaking after just a few uses, this could be something that people want, and need