[lovecg]

Some people learn language primarily by sound. Most native speakers learn that way. They’re more likely to swap their/they’re or horde/hoard as for them the scribbles on paper are secondary.

Some people learn language primarily through writing - a lot of non-native speakers learn this way. To them someone making a their/they’re mistake is bewildering, but they mispronounce words in ways that seem strange to the sound-learners.

The two groups don’t under each other’s struggles and often look down on the other’s language ability.