Usually richer people get trained on a language through school so they learn to pronounce stuff "correctly". Thus poorer people pronounce it incorrectly and eventually they both have accents.
If you send settlers somewhere without anyone teaching them the "proper" language eventually their language will evolve differently. They'll shorten words. Emphasize certain letters and so on.
Dragonshotgod t1_je3x791 wrote
Reply to Eli5: How are different accents formed out of the same language? by chickentittyramen
Usually richer people get trained on a language through school so they learn to pronounce stuff "correctly". Thus poorer people pronounce it incorrectly and eventually they both have accents.
If you send settlers somewhere without anyone teaching them the "proper" language eventually their language will evolve differently. They'll shorten words. Emphasize certain letters and so on.