That said, I certainly fooled around with live power when I was his age. The house didn't burn down because we had a competent electrician install circuit breakers when we built it.
Either way, he is 14. Like the saying goes, 'everything is a remix'.
> I don't think he actually made anything
That's pointless judgement for something that a 14 year old himself claims in this video as 'really easy... something small': https://www.youtube.com/watch?v=3mW4w0Y1OXE
At 14, all that matters is you are willing to learn, persevere, and have the courage to create something. (Actually, that's all that matters at any age of one's life.)
I did this a lot as a kid -- removed broken stuff, poked around to fix it, glued it into a different box. It's one of the reasons I went into electrical engineering.
It's a shame we have nothing like that today, electronics are just "magic" to people now that is made elsewhere.
When you're young is a great time to get shocked by 170v. Better than the rectified 340v from the caps in a power supply.
I mean it is good he is learning how things work inside but I don't think he actually made anything and actually was fooling around with an openly exposed 110VAC transformer. He definitely needs some guidance and help with this stuff before he hurts himself or burns the house down.
This is like that woman at MIT who had a circuit board clipped onto her clothes and went to pick someone up at the airport and almost got murdered by security.