Nobody has to decipher anything. Everyone is taught from childhood about the most important signs, everyone grasps basic rules and exceptions, and when you learn how to drive, you learn and memorize more obscure sings, and then you just know them, no deciphering needed. It’s the same both in America and in the rest of the world.
You seem to think that American signs are intuitive and not require learning, but that’s not true, it’s just you’re familiar with them, you know the rules and so it’s easy for you.
Nobody has to decipher anything. Everyone is taught from childhood about the most important signs, everyone grasps basic rules and exceptions, and when you learn how to drive, you learn and memorize more obscure sings, and then you just know them, no deciphering needed. It’s the same both in America and in the rest of the world.
You seem to think that American signs are intuitive and not require learning, but that’s not true, it’s just you’re familiar with them, you know the rules and so it’s easy for you.