When I was growing up, I played games. I thought they were neat. I wanted to make my own. I didn't have the tools to do it. I couldn't even easily acquire them -- mom, dad and my sister weren't going to allow the youngest family member to install Linux on the family computer, and we certainly didn't have the money to buy development tools. It doesn't matter if I could install a boot loader to dual boot -- I wasn't allowed to mess with it unless I wanted to be grounded for months.
I was allowed to dumpster dive for 386s though. And I was allowed to do whatever I wished to those computers.
As long as people are curious enough, there are no barriers. Hell, there are still cars designed in sheds (and sold to the public).