Sure but then I'm sure people aren't boasting about their grandpa's tradition furniture build process that involves following instructions from ikea

Yeah, no. Family recipes rarely work like that anymore. My mom’s lemon meringue pie recipe is from the Pillsbury cookbook from 1960-something. My chocolate cake recipe is straight off the back of the Hershey cocoa box. It is way more common for grandma’s fudge to be the Fantasy Fudge recipe off the back of the marshmallow creme package than it is to be some heirloom recipe. Do non-cooks not know this, and actually think everyone’s mom’s recipe for everything is the equivalent of a traditional furniture build?