In some case people have full time jobs Monday-Friday and supplement their income by driving taxis on weekends. The taxi car is often shared between two oro more taxi drivers. I met a Procurement Manager who drove a taxi on weekends to allow him to provide a decent standard of living for his family.

BTW there is very much an attitude of doing as many jobs as it takes to support their family. Not the benefit culture that we seem to have in the UK where many (though definitely not including genuine claimants) have the opinion that unless they can secure a high paying the job of their choice, the state owes them a living.