pizza is good, seafood is bad
When I say something is good or bad (“yay doggies!”) it’s usually a kind of shorthand:
pizza is good == pizza tastes good and is fun to make and share
seafood is bad == most cheap seafood is reprocessed offcuts and gave me food poisoning once
yay doggies == I find canine companions to be beneficial for my exercise routine, useful for home security and fun to play with.
I suspect when most people use the words ‘good’ and ‘bad’ they are using just this kind of linguistic compression. Or is your point that once a ‘good’ label is assigned we just increment its goodness index and forget the detailed reasoning that led us to it? Sorry, the post was an interesting read but I’m not sure what you want me to conclude.
Get them reading. Babies love being read to. Introduce them to the beauty of books, and the wonders of the public library system. Then, when they have the tools to navigate the repository of written knowledge, set them loose. Steer a little, but don’t interfere.