Who does best as a smallfolk?

[eyenon15]

Except no, because despite what a lot of people seem to think, Arya is not defined by how many people she's killed or how good she is at it. If we disregard all that she's been through as an exiled noble girl, why would she need to kill anyone in the first place? Why would she end up killing professionally? She'd probably work on a ship, as she enjoyed being on Titan's Daughter and briefly wondered if they'd have her. Arya is the most adaptable character in the series, she'd probably be good at most things.

Well she did show an interest in learning how to fight. I think it shows evidence of the nature or propensity for a profession of that nature. Granted, as a lowborn she wouldn't have had Syrio to train with nor would she be witnessing boys training to fight all the time.