Silly question!

Compared to some of the wonderful insightful analysis of characters and breakdowns of episodes I've seen in this subreddit I feel silly wanting to ask this, but it's been bothering me during my third rewatch...

Ive noticed throughout the season there seems to be a distinct lack of basic manners towards service people from nearly(if not all) the characters. For example, I'm currently watching s7ep10 "The Forecast" and when Joan is at her hotel in LA she orders room service. Throughout the entire interaction she doesn't stop to say please or thankyou, even when she got to the final item.

Is this a personality, time period/culture at the time or American thing? I'm English and when ordering food/drinks/anything it's common to go overboard with the pleases and thankyous, definitely the opposite of what's shown here! I remember my first watch and the bigotry didn't surprise me as obviously it was quite often the norm around that time, but the distinct lack of manners considered normal here did as most of the characters are well to do, or at least aspiring to be.

Sorry it this doesn't count as a madmen question, I'm hoping it's just madmen adjacent enough 😊