I wouldn't go back to live in Mali myself. I've done it. Enjoyed it. Now I like my life malaria and war free.
My answer is not some romantic vision of the bohemian life style. Simply an explanation that the question of the toilets doesn't make sense: you don't look for vans if it's important to you. Like you said, you rather choose a trailer. You would not go on the specific type of trip that requires a van anyway.
I edited my previous post from "you are not the type of person" to "you are not in the state of mind". After all, it doesn't define you as a person but rather, reflect your current expectations of life.