I bet people in hindsight could come up with subjects they think were a waste of time and should be done away with.
But remember education is for Children and not for grown ups, allow the children to explore every subject and later judge their usefulness for themselves.
Ironically, if you were to apply just sheer numbers, more Kenyans in life could argue that Kiswahili is of more use than English for their day to day lives, careers and livelihoods. I am talking about people in the informal sector, businessmen, farmers, traders, matatu sector folks, mama mboga's.
Thats the Kenyan population and not someone who wants to carry out "international commerce". Besides, we are net importers, let the international traders looking to sell us stuff learn to communicate with us, the Chinese don't speak English but seem to have done this very well selling us everything from toilet paper to SGR
"The purpose of bureaucracy is to compensate for incompetence and lack of discipline." James Collins