Accents and age

Children are able to take on accents at a fast rate; children of traveling families, for example, can change their accents within a short period of time. This generally remains true until a person's early twenties,[2], after which, a person's accent seems to become more entrenched. All the same, accents are not fixed even in adulthood. An acoustic analysis by Jonathan Harrington of Queen Elizabeth II's Royal Christmas Messages revealed that the speech patterns of even so conservative a figure as a monarch can continue to change over her lifetime.[3]