system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why have Americans and Canadians "lost" the British accent, and why has Australia "retained" it (in a morphed form)?
gpt
Americans and Canadians didn't lose any accent. Their accent diverged, as did the accents in Britain.

The reason the Australian accent is more similar to modern British accents than American and Canadian ones are is mainly because it was a more recent colony. It wasn't settled en masse until much later.