It would be worth looking for Venus signatures in country or location charts.
I think manners are important to a society. My Mars is in Libra so I may be overly sensitive. When decency and manners are not there I believe it creates this low level anger that can't really be put into words...cashiers at a grocery store who no longer feel it important to interact or even thank you like someone cutting in line or a driver passing everyone and waiting till the last moment to merge into construction traffic. These 'slights' have a cumulative effect. As Elsa has stated, it's regional. I have lived in the midwest of the US much of my life and when I've lived in or visited other places it's a shock to the system when simple things like please and thank you are absent. Although it seems only prevalent in small towns now.
Our society doesn't put much weight on these things like they have in the past. I think manners go a long way in making people feel valued and that is good for everyone.
I was raised in the deep south, and yes, mam and sir are ingrained. Mothers scold a "yes" response instead of "mam" ... good manners seems to be a conservative cultural thing... Catholic LATAM embodies it as well.
I was later scolded using mam out west by women, definitely. It makes them feel "old" was the feedback and they found it rude. Then would realize their own rude reflex when I explained it was just how I was raised and not personal.
I have a lot of Aries not Libra.
the "nice" part of Libra though I tend to find annoying.. I guess my Aries deems it as insecure and therefore weak. Very generally speaking, it doesnt feel authentic... fake, surface, vein.. for appearance is so hollow and boring.
my Libra cousin tries to monitor my volume level because it draws attention, and I don't know it's kind of a pathetic way of existing .. caring that much what people think
I have Libra Mars and I don't even care anymore. If someone is nice to me I will be nice to them. If they are rude to me more than once, I won't even look at them. Just done. I used to try to win people over but it's not worth the effort to me anymore. I won't be rude, but I also just won't engage. Meanwhile my Mars wants to fight them but oh well. Rudeness really bothers me because I have always put forth the effort for good manners.