Kekes are a routine method of transportation in Nigeria....
These three-wheeled vehicles have become very popular, competing with the motorbike taxis that have been a staple for a long time.  These kekes provide a bit more protection and can carry more passengers than the motorbike.  
Kekes are quite maneuverable and can negotiate crowded Nigerian city streets better than larger cars.  They are also far less costly to operate and provide jobs for many young men that otherwise would be jobless.
Despite the positives, kekes, particularly when driven at higher speeds, can be dangerous.  These are vehicles that are commonly used to deliver children to school, as centralized transportation for education purposes does not exits in Nigeria.  When the groups of these vehicles are often referred to as the "wild bunch" (newirin.irinnews.org), it gives one pause when inviting children to ride in them...