Originally Posted by
WMUG
I don't think that's what ESR's doing, is it? I don't have any clips of him speaking at age 10 to hand, but I'd be surprised if he was full-on RP at that age.
People do speak differently in different situations, which is called code-switching. Again, I've not studied that very much so I don't know the ins and outs of it, but it's something we all do unconsciously from time to time. As far as I'm aware, a common place where code-switching is observed is in the classroom vs in the playground, i.e. when speaking to authority vs to peers.
What we switch between, and how much that happens, is again something that depends on the individual.