and also why ask KIDS ? why not mature people ? maybe they will at least have second thought on what to choose.
Mature people are more likely to have heard at least a little bit about Bitcoin to know it's probably worth more than $100. And if they didn't know, they'd probably make some level-headed response (e.g. "I'm not sure what Bitcoin is so I'll take $100"), which wouldn't be as entertaining as two ignorant teenage girls.
And as posted above, it might have taken a while for that guy to find anyone choosing $100 over 1bitcoin.
I also heard that they have also heard about bitcoin before, but they don't know anything other than that. However, the introduction of bitcoin is now widespread, and most people already know what the real price is but probably don't know how to use it. However, education is still needed to make people like that realize how valuable bitcoin is today.
Bitcoin is known worldwide even the new generation and the old generation have idea what bitcoin is, and the real value of it. They might heard it at the news, people and in the internet but we all know the complicated situation of trading or investing in bitcoin for beginners. They don't even know the volatile situation of it all they know is that the bitcoin has a huge value. From my experience, I told someone that I gained money thru the help of bitcoin and he responds with "you must be rich right now" then I concluded that even people who have zero knowledge about bitcoin they still know the worth of it. Even me I rather choose 100$ knowing the fact that bitcoin value more because I don't know how to convert it to fiat money which I think a hassle.