Thick accent in English?

Jonny59
how do you guys understand someone with a Thick accent and is it normal or? what cause this
I recently met a Scottish guy and holy sh't I barely understood him
I made him to repeat 3 times and slowly so I can understand the sentence
anyway what cause Thick accent or can someone improve it with talking in a different way or? is it bad
I've heard people saying Thick accent means someone who's uneducated and probably not smart enough
Thick accent in English?
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