People who move their homes often, need to carry things. If they are going far, they may move their families with them. That's where I come in. I am strapped to both sides of the donkey. Pastoralists usually travel light.
Women build new houses when they arrive at their destination.
There isn't as much moving to new areas as there used to be. More and more land is being fenced in for ranches so cattle can't roam as freely as before. More and more people would like to settle closer to stores, schools and medical facilities. So most of the time these days I get thrown away or used as a door covering waiting to be useful. By the way, the AfricaQuest team uses modern panniers that are strapped to the sides of their bike wheels.