An ex colleague of mine starts buying and enjoying M&S mince pies as soon as they appear in the shops. (Already I think!).
Some people really love Christmas and like to start very early, to spread the cost, if nothing else. I can't say it really bothers me, but then I've always loved Christmas, too.
Must say that what grates a bit at this time of year is the mountains of black/orange Halloween tat that is filling the shops.
I'm convinced that Halloween has only become such a Big Thing in recent years, compared to in my childhood, because it's now seen as such a fantastic opportunity for making money on tat that kids are going to clamour for - and parents feel they have to buy.