Kun Norwich äännetään "norridz", miksi sitä ei kirjoiteta loogisella tavalla?

Tai vaikka Gloucester? Äännetään kuten Gloster. Lentokoneen nimi muutettiin juuri tuosta syystä.

"In December 1926, it was decided that the name of the company should be switched to a simplified form—the Gloster Aircraft Company. This was reported because customers outside of the United Kingdom found it easier to pronounce and to spell.[1] Typically, locals and employees would simply referred to the company as GAC. "

https://en.wikipedia.org/wiki/Gloster_Aircraft_Company