Generally It's not enough to live on. However there is a thriving black market, prostitution or just "hooking up" with wealthy foreigners is common. For example a bartender at a resort will likely have his/her own bottle of alcohol behind the counter and sell that while pocketing the cash, later when they check the alcohol everything lines up for drinks sold vs revenue but the bartender skimmed $x in revenue off the top. Underground capitalism/entrepreneurship is how people get by (risking serious jail time daily).