When Finnick had been a child, he'd been meant to grow up to be a fisherman, like his father and his father's father before them, and everyone else in his family. But he'd had other ideas. He'd wanted to join the Careers, wanted to take part in the Games, wanted the fame and the money that came with victory. He'd never really wanted to be a fisherman, until it was too late to become one.

But here, it's something they can do. They need a way to make steady money, not immediately, but eventually. Soon. And for all Finnick's skills, only one of them is something he can see himself making money with (and being able to live with himself).

It's why he'd been talking to the fishmonger.

"I think he might be. Apparently there's a fishing fleet operating off the coast west of here, but sounds like there might not be a lot of people fishing in the river."