Sorry to bump a nearly 6 year old thread, but I was thinking about this randomly earlier today, and I came across this thread while I was idly browsing the forums.
Interestingly given that I come from a region with quite a strong regional accent (the Forest of Dean, in the South West of the UK), I’ve determined that I simply have an incredibly generic English accent. I thought I was developing a Forest-y twang with age, but my mum shot that theory down when I asked her, saying that I sounded nothing like a Forester whatsoever (my mum has a fair Forester accent), yet I also didn’t inherit my dad’s Kent accent either (my dad grew up in Kent, in the South East of the UK; not too far from London). She described both me and my sister as “accentless”.
As it turns out, what I thought was a “Forest-y twang” was simply my generic English accent growing less posh with age. When I was a child, I honestly sounded like one of those stereotypical British people from foreign films, with properly posh pronunciation (for instance, bath pronounced as “bar-th” and castle pronounced as “car-stle”) and enunciation of every sound without fail! These days, though, I seem to revert to more informal pronunciation, and my enunciation is far less frequent (although I occasionally do still enunciate).