The fact that it has so lany dialects that are frequently explored in popular media too means its a language that can be spoken poorly and still be understood. The listener bears some of the cognitive load and many other languages arent as advanced in this regard.
That is only something that is easy for native speakers, though. The points a non-native speaker anchors in the speaking flow are completely different to the ones a native speaker does, and depend on the mother language, making the thousand "official" variations of native English quite a challenge.
I find far superior other languages approach of having a "high" form taught in schools that everybody native is supposed the speak and understand, and the dialects are left for home.
