Whoever made your school’s collards likely learned how to cook them from FIL.
He does the same with peas and broccoli.
When we visit it can be tough to find veggies we all like. Once I tried to just skip the greens, but he noticed and asked about it so I took some. I then eat them first to be able to get the flavors of other foods in my mouth afterward. They are pretty gross. Broccoli, cooked his way, is the worst. I love broccoli when it isn’t cooked to death. You could eat his with a straw I suspect.