That’s not really a common situation though. Sure, people might use the BSD license on something they did as a hobby, or just to learn things. But, the scenario described here is more like:
A group of people all have the same little problem, and they work together to come up with a solution for it. They solve the main problem, but their solution has a few rough edges and there are similar problems they didn’t solve, but they’re not motivated to keep working on it because what they have is good enough for their current needs. So, they put out some flyers describing how to do what they did, and inviting anybody who’s interested to keep working on improving their fix.
A company comes along, sees the info, and builds a tool that solves the problem but not quite as well, and for a small fee. They spend tons of money promoting their solution, drowning out the little pamphlet that the original guys did. They use as much IP protection as possible, patenting their designs, trademarking the look and feel, copyrighting the instructions, etc. Often they accidentally(?) issue legal threats or takedown notices to people who are merely hosting the original design or original pamphlets.
Maybe the original inventor didn’t get screwed in this scenario, but you could say that the public did.
It’s not just one generation receiving an education vs. another one that didn’t. It’s that the platforms the generations used are fundamentally different.
Gen X / Millennials grew up with Macs and PCs, computers that were fundamentally not locked down. You could install any software you wanted. You could modify the OS in many ways. DRM wasn’t really a thing in general, and there were almost always easy ways around it.
Gen Z / Gen Alpha grew up mostly with cell phones. The phones they had are much more powerful than the PCs from 20-30 years ago, but they’re incredibly locked down. The only applications you’re allowed to use are the ones that Apple / Google allow on their app stores, unless you root your phone which is a major risk. It’s very hard to even load up your own audio files, movies or images let alone “dodgy” ones. DRM is everywhere, and the DMCA means you risk serious prison time if you bypass access controls.
Gen X / Millennials grew up at a time when there were still more than 5 tech companies in the world, and the companies out there competed with each-other. There were plenty of real standards, and lots of other de-facto standards that allowed programs to interoperate. Now you’re lucky if you can even use an app via its website vs. using a required app.
It’s not just a difference in education. It’s that companies have gained a lot more power, and the lack of antitrust enforcement has made for plenty of walled gardens and “look but don’t touch” experiences.