Some hiring managers prioritize technical skill but its only one part of whether the interviewers "like" a candidate. There are infinite reasons someone can get turned down and only some of them are skill related.
To expect children/teens to outsmart big tech companies putting billions of dollars into getting us all addicted to our phone seems... naive. Removing availability to a vice has always been a somewhat effective strategy to mitigate temptation, i.e. food, drugs, etc.
While trying to decipher some questionably typed, cryptic project requirements a coworker said "someone should make a tool to improve project requirements." So I threw together a chatgpt wrapper with a query template in the time it took to finish the meeting.
I've been wanting to play around with some easy AI ideas so this was a silly way to practice.
With LI, I haven't applied to jobs in years as recruiters come to me; I simply don't have to do any extra work. With others, I have to actively apply for jobs.
The fact that the idea isn't validated was also the red flag to me. I read the lean startup recently, I would recommend that to learn about validating product ideas as you build as to not get to a finished product that no one will pay for.
The general advice is "do things that don't scale" so rather than trying to post about it and get some analytical data, just go talk to 20 people in your target market for an hour each and see what resonates with them, what problems they have etc -- all before building anything (except maybe a simple mockup if you feel it will get your point across better.)