I've got an accent. It's one that's very, very uncommon, basically because it's a blend. Most people have the undiluted accent of where they grew up. I spent the first five years of my life in the town of my birth - Banbury in Oxfordshire - acquiring a midlands accent. Then we moved to Edinburgh.
I started off in the primary school there as the one English pupil in a class of Scots speakers. My younger sister adapted to the new speech patterns, but being older, my accent was just about fixed. I say just about, because there was obviously still some flexibility left in my neural structure. Slowly, my accent has evolved. Now, if you could hear it, you could tell I was Scottish, but you wouldn't be able to say from where in Scotland. No-one can. Patients are always asking me where I come from. My accent has been placed in the Highlands and Islands, Buckie, the Borders, even Ireland. They're always surprised when I tell them I'm local.
Of course, I can't hear my accent. To me I sound as if I'm speaking straightforward English. It's everyone else who has an accent.