Anglophones are often confused by the concept of tone being used to differentiate words in many non-European languages. But it's not a hard concept, it's just

Anglophones are often confused by the concept of tone being used to differentiate words in many non-European languages. But it's not a hard concept, it's just unfamiliar to them. People being confused by a concept after it has been taught to them suggests that either the concept is hard or the educational process inadequate. Confusion on initial introduction has nothing to do with difficulty.