I think you're misinterpreting my post. I'm not advocating against social norms, but rather specifically about 'etiquette' like how people aren't supposed to wear hats indoors, or that you should end all your sentences with sir or ma'am to be considered polite.

As you said the social norms inherently emerge and change. And because everybody's experience (and therefore what they consider normal) is different, the existence of situations where people with mismatching norms clash is perfectly normal and proper.

But there's also an enormous overlap in those different norms, and that's because there's norms in there that are actually based on something. Like a young person who doesn't mind standing giving up their seat to an old lady who has to provide a much bigger effort.

But I don't think the ones that are based in something are the ones that are changing. But rather the ones that we are quickly losing are the ones we do "just because" that's what we were thaught/ that's what's normal/ thats how everybody else does it/etc.

> I'm not advocating against social norms, but rather specifically about 'etiquette' like how people aren't supposed to wear hats indoors, or that you should end all your sentences with sir or ma'am to be considered polite.

But those etiquette things are also emergent social norms, no different than the others. And they absolutely do change over time. Very few people consider wearing a hat indoors or not ending all your sentences with "sir" or "ma'am" rude anymore, for instance.