Accounting for 80.8% of jobs, the informal sector is the main source of employment and the backbone of economic activity in urban Africa. The vibrancy of the informal sector is difficult to miss in African cities: street vendors are key in ensuring food security. Those who work in transport keep the city and the economy moving. And those operating in services are critical to the overall incomes and functioning of African cities.
Read more here: https://blogs.worldbank.org/africacan/supporting-africas-urban-informal-sector-coordinated-policies-social-protection-core