Alot of British people don't like it (don't flame me over this brits!), It's mainly down to alot of people that used to wear it that wern't always good! (Chavs, Charvers etc. Brits should know what I'm talking about.)
Sidenote!: Not all chavs are/were bad, and not every one that wears burbery is a chav. The company its self had a dip when these people started being associated with the brand starting wearing it, mainly because they wore fake burberry and then people did not want to buy the real brand for fear of being associated.
(PLEASE don't flame me for any of this! I'm just stating alot of views and opinions, with a little bit of fact thrown in.)
Anyway, I'm going out now to buy a bobby hat and eat some fish and chips