You don't. In cases like OP you can choose to make a gamble. If you don't have a family to support there's no real reason to not take big unlikely payoff risks

You don't. In cases like OP you can choose to make a gamble. If you don't have a family to support there's no real reason to not take big unlikely payoff risks in order to try and make crazy outcomes happen. The only caveat would be if by trying to become a farmer you'd be exposed to organized violence, but I'm not sure what that's like in Madagascar.