Wikipedia: "Yam is an important dietary element for Nigerian and West African people. It contributes more than 200 calories per person per day for more than 150 million people in West Africa, and is an important source of income. Yam is an attractive crop in poor farms with limited resources. It is rich in starch, and can be prepared in many ways. It is available all year round, unlike other, unreliable, seasonal crops. These characteristics make yam a preferred food and a culturally important food security crop in some sub-Saharan African countries."
The local market where we lived was full of yams. 12m out of the year. Yams are grown in much of Africa and don’t require vast resources of water like rice. We ate a lot of yams when we lived there.
Yes, but yams aren’t a cash crop. It’ll feed their kids, but it won’t put money in their pockets.
And that’s the major problem, here.