Accents are a funny thing. They change over time, too: nobody talks now the way they did in the 1930s.
Certainly the whole point of an education used to be to smooth away the rough, regional edges - the biggest difference between now and the 30s is that regional accents are now respectable. The royal family speaks perfect RP, or Received Pronunciation, which is the most 'invisible' English accent. But England (let alone Britain) has so many accents that George Bernard Shaw was barely joking in 'Pygmalion' when Henry Higgins claims he can tell what street someone's from by the way they talk.
My accent is a neverending subject of very tedious conversation. Some say I've 'really kept it!' Some say they can hear New York; I used to work with a woman who wanted me to come to her desk every morning and say, 'I wanna cup of cawffee!' Some say I've 'really lost it'. In London it's remarked on in some way by almost every person I meet, and in America people think I'm English. I think the truth is that it slips around all over the place.
Funnily enough I read last week that Americans had voted a Glaswegian accent as the 'sexiest' UK accent.