Note that for a lot of people (me included), Africa is a social and legal black box and that is a major cause of concern for such issues (justified or not). Some countries have unreliable courts and/or people/tribal justice on the street is common, other are more modern, and except for a few specific countries I don't know which ones falls into which group.

(what I'm saying is, you're more scared of the unknown, and the various countries of Africa is much less known by the average hn'er than the american system)