Native English speakers mostly learned English by sound alone, so many such speakers regularly mix up words which sound very similar, like it’s/its, effected/af

Native English speakers mostly learned English by sound alone, so many such speakers regularly mix up words which sound very similar, like it’s/its, effected/affected, site/sight, etc. Non-native speakers have instead frequently learned by mostly reading, and may therefore instead be lacking in correct pronunciation, but have no problem in distinguishing “it’s” and “its”, for example.