Why do Americans pronounce shit retardedly?

[Batty]

Yeah, same here.

I just wonder why people don't work harder to condition themselves not to say it?

I know some folks that will be in a professional setting and they are clearly trying to make themselves sound presentable and then they drop axes like a retired lumberjack.

At that point, they might as well say SUP NIGGAS instead of GREETINGS KIND SIRS.