Yes let that 12 year old have the instructions.

Maybe as a society we then will have to have the conversations about cause/effect and personal responsibility that prepare children for adulthood.

When I was 9 my brother gave me a disc with all sorts of hacking and explosive making material. Jolly Rodger cookbook, handbooks on counterintel, hacking books about overflows.

I had great fun making thermite and smoke bombs and it led me to my career in software.

None of it was any more dangerous than climbing a tree because of good parenting.