system
Given the following post, respond as if you're commenting on Reddit:
human
[Halo 5] Why does Spartan Kelly-087 speak with a British accent? All Spartan IIs spent most of their formative years only communicating with each other and their trainers. Shouldn't they share a standard accent?
gpt
She wasn't taken into the program until she was six, and an unusually intelligent six at that.  She was already fully articulate and would have already developed her accent.  
Not everyone loses their accents when separated from people who share it, and it's also entirely possible that she likes her accent and keeps it as an affectation.