Steve Jobs didn’t so much create anything at a young age in the field of technology, but was interested in the subject in the single digits. At the age of 13 he got a job at Hewlett Packard factory (this was 1968 people, relax), and started building and selling illegal “blue boxes” with Wozniak in 1972. The devices gave people the ability to make phone calls for free.
Okay, so we know kids are learning at a younger age now, but that doesn’t really help those of us who have little ones running around at home and no idea how to introduce them to the topic without overwhelming or boring them. All in all, it really boils down to the child’s interests.