I read one or two of the Blyton books when I was a kid - many years ago. They didn't appeal to me. From a modern standpoint, many of the values and ideas in them are unacceptable - racist, sexist, etc. - and the language is a dead giveaway to it all. But I wouldn't have one word of them changed by a jot or tittle. They're of their time and should be seen as such, and read as such. And that goes for other fiction which has caused raised public eyebrows in later years - "Little Black Sambo" being one, for example.

Nothing of this sort should be censored and, in fact, you can't stop kids reading what they want, in the end. There are difficult decisions to be made by the people that provide books for children - schools, libraries, parents - and I wouldn't personally provide this stuff for my own grandchildren at any price. But they will read what they want to - always providing they can read, of course. :-)