I appreciate the disagreement. And I do agree that some knowledge is better than no knowledge. But there are always limits to what we can know and do, if simply

I appreciate the disagreement. And I do agree that some knowledge is better than no knowledge. But there are always limits to what we can know and do, if simply because of the number of hours we're alive. But even the way you phrase your comments indicates you're wearing a large set of winkers. "If it's useful to my life" is so broad as to be unimaginably large. Just thinking through my day: do you know what makes good soap or shampoo, and could you make it on your own? Can you purify dirty water? Can you fix the plumbing in your house? Can you make a toothbrush or toothpaste? Spin yarn or other thread, and use it to make material goods like towels, clothes, or shoelaces? Can you hone a blade's edge to razor sharpness using a leather strap? Can you skin a cow? Can you re-sole shoes? Fell a tree and use the lumber to make a bed, dressers, cabinets, or a door? Can you make elastic? Harvest grain and use it to make food? GROW grain in the first place? Re-wire your house? Fix your fridge/stove/microwave/garbage disposal/dishwasher/vacuum cleaner/etc.? Power your house without relying on the grid? Make and level concrete? Build a house? And on and on... I have no doubt that you could, should you want to, learn some of those things. But you have to rely on other people at some point -- even if just because "there's significant risk". But just because you can learn things you're actually trying to learn says nothing about the MYRIAD things you aren't learning. And the sooner people realize that OTHER people find those things interesting, and that some of those other things even take immense skill or knowledge, the better off they'll be. Right now, it mostly sounds like you're completely ignorant of how many things you rely on that you have no idea how to do yourself.