Since when do the rules of a polite society not apply to everyone? Are there exceptions/exemptions that I have been unaware of for my entire life? Does pregnancy, having children, being in a relationship, being in school exempt people from needing to RSVP to a specific invitation? Is being pregnant, having children, being in a relationship, being in school an acceptable excuse for failing to follow even the most basic rules of etiquette?
I am beginning to wonder if I have just been under the mistaken impression that polite is polite, regardless of whether you are starting a family, dating someone new, etc.