

Technically it does. Engines are usually less optimized for driving 30 compared to 50, which causes them to use more fuel for the same distance.
But a slightly higher fuel consumption is easily offset by reduced noise and increased safety (for everyone).







The Problem with that is that English lacks uniformity. There is simply no possible spelling that works for Oxford, Houston, Vancouver, Perth, Lagos and Johannesburg at the same time. Heck, it doesn’t even work between London, Manchester and Edinburgh.
So which pronunciation do you match the spelling to? What is “High English”?