This pattern appeared in my math math education in the USA as well, but not as pronounced as in physics or chem. The biggest example is that we were initially t

This pattern appeared in my math math education in the USA as well, but not as pronounced as in physics or chem. The biggest example is that we were initially taught that you cannot take the square root of a negative number. I also have vague memories of learning that a larger number cannot be subtracted from a smaller number (sometime early in grade school).