Considering how the English handle some of their place names Thames is practically the poster boy for phonics.
Considering that you hail from a country harbouring places like Nacogdoches, LA*, Faldage, isn’t that perhaps a little hasty?
*(for Dextropondians: the natives pronounce it --- if you call that pronouncing --- something like ”Nacker-dish")
A dishwasher working in Nacogdoches
Once had the misfortune to crack a dish.
His boss, most severe
said “Get out of here ---
Come back when you’ve learned how to stacogdoches”.
;-)