For the most part, according to Daniel Post Senning, an etiquette expert who wrote "Manners in a Digital World" and works at the Emily Post Institute, people are pretty good at figuring out when an etiquette guideline is outdated.
But observing proper etiquette still makes some people nervous — and there are a few guidelines that are trickier than others.
But if you're worried about confusion arising when the bill comes, he said you should address the issue head-on when you accept the invitation.
Sometimes, situations arise that do not fall under easy definitions of proper etiquette. A groom's stepmother is usually considered an honored guest, but not necessarily on the same honoree level as a mother of the groom or bride.
Her attire should fall somewhere between normal wedding guest outfits and that of the mother of the groom.
But when you're meeting someone for the first time — especially in a business context — it's best to adhere to new etiquette guidelines so as not to offend anyone.
Figuring out proper dress etiquette for mother of the groom can be confusing for both the bride and mothers.
"Just turn around and say, 'thank you.'" An important note: Both Pachter and Senning mentioned that what you do in your personal relationships is your own business.
You and your partner, or your friends, can figure out what feels right for you, whether that means having the man pay the bill or carry the packages.
Sometimes, the couple will pick an accent color, like deep purple or claret red, while other times, they stick with basic black and white. Consider wearing one of the accent colors or black. Ask your son's fiancée for her recommendations or preference based on what her mother is wearing.
Remember that your accessories will help create the outfit.
"Just because we change things doesn't mean that we become rude," Pachter said.
You should "help anybody who needs help, which is a much nicer environment." That said, if you're a woman and a man does move to open the door for you, Patcher said let them.
Now, he said, "we have an allowance for the understanding that anyone could invite anyone.