That many cultures around sub-Sahara Africa follow that "peculiar" notion of showing respect , would be a more accurate statement.
Perhaps that's the reason why West Africans (men in particular) seem to have so many social problems, assimilating their "mentalities" with the universally accepted "Rules of Civil Behavior" protocols, of the Americas, Asia, Europe, the Middle East & Oceania (Papua New Guinea, and Fiji withstanding).
We've been there, seen it (once was enough) and we've got the Liberia goodbye T-shirts to prove it.
If you're happy with the way things are, in Liberia, then we're happy for you, there.
Sincerely, and best regards.