Are these types of manner posters unique to Japan?

I’ve written posts about these manner posters before…

Here: https://tokyo5.wordpress.com/2008/11/25/manners/

Here : https://tokyo5.wordpress.com/2009/01/20/more-manner-posters/

and even A/C ones are kinda similar: https://tokyo5.wordpress.com/2011/03/23/for-sendai/