Because of my London and Essex upbringing I have an estuarine twang. It's not as marked as when I came to Devon in the early '80s but it's still there. It re-emerges when I go back to stay with my family. A few days in Southend-on-Sea and there's glottal stops aplenty!
My boy is proud to be Devonian but there's not a trace of Westcountry when he speaks, although once when asking the way somewhere a 'where's that to?' slipped out. To my ear he sounds like a generic posh kid. But I love an accent and have a special fondness for the rich Westcountry ones. When I arrived in Exeter in the '80s people who spoke 'proper Devon' were two a penny. I got used very quickly to being called 'me lover' as a term of endearment. Now it's rarer to hear people who speak like April and June here. We live in a much more homogenous society. It's sad that different dialects are dying out.