In Germany, if you want to buy glasses you go to a shop that sells glasses, and they actually to the measuring of what the correct prescription happens to be in the shop by a person who has not studied medicine.
It seems like the law in the US prevents shops that sell glasses from doing that. As a result, you don’t have market mechanisms that push the process of determining what glasses you need to zero in the US the same way it’s done in Germany.
In Germany, if you want to buy glasses you go to a shop that sells glasses, and they actually to the measuring of what the correct prescription happens to be in the shop by a person who has not studied medicine.
It seems like the law in the US prevents shops that sell glasses from doing that. As a result, you don’t have market mechanisms that push the process of determining what glasses you need to zero in the US the same way it’s done in Germany.