That is like saying you only want to pay taxes towards the roads you drive on yourself.

Would you be better off if all publicly funded roads where instead private and required you to pay tolls per usage? You would defiantly get an bill more matching your usage, and people who don’t drive would pay less. But it at least feels like we are better off with public roads because they all add value to society as a whole.

The same goes for education. You don’t care about Akkadian studies, but perhaps someone does who thanks to his education can focus on that and earn enough money to buy a car from you auto mechanic keeping him in business making life better for you.