AIBU to expect people to introduce each other?

[YeOlde]

When I was a child back in the 18th century, if, for example, you were out walking with a friend and you ran into someone you knew, you would always introduce your friend. It would be considered the height of rudeness to leave someone standing there not being able to “properly” participate in the conversation as they had not been introduced. There was also even a protocol for how you introduced them, which I always managed to get wrong. It was something like you’d introduce older people to younger people, and so on.
So I recently ran into a friend - she was with somebody else but she didn’t introduce this person, who then stood awkwardly waiting for us to finish. I feel like this is incredibly rude, but I acknowledge that it’s not the first time it has happened in the past few years, and maybe I’m just stuck in the 18th century.

I've definitely failed to do it when I have blanked on a name.

It's quite embarrassing to say "yes, I've known you for 3 years but I can't remember for the life of me what your name is."

In them situations I'd just say "hi, I'm...".
Would it have been so hard to introduce yourself? It would have saved the awkwardness, your friend may have then realised she forgot/you don't know each other.
I think it's silly to expect everyone to follow some unwritten social rules and leave yourself feeling uncomfortable when they don't and you could have easily rectified it.

I agree, I was actually out with my friend and our babies recently and she bumped into a lady she knows and they were chatting and I just stood their like a lemon and eventually just went and entertained my baby. It was awkward. I would always say ‘oh this is so and so’

You’re not being unreasonable but basic social skills are steadily going down the pan - a significant number of people are completely unable to observe even the most simple of social niceties.

You see it on here regularly - a stranger has the temerity to pass the time of day and the poster reacts like they’re being harassed or insulted.

Surely it’s possible for the person you are with to at least introduce you though? They might of forgotten the other persons name but surely if you were with them they probably haven’t forgotten yours!?

Oh god I'm guilty of this - I was with a friend the other day and bumped into someone I hadnt seen for years. I thought I'd just say hello, exchange a couple of pleasantries then walk off so I didn't introduce them, but then the conversation went on a bit and it became too awkward to suddenly introduce them mid conversation. I am very socially awkward though and often get things like this wrong 😕

That's a good fudge; I'll have to remember that.
Although in this case I was a bit vague even on how I knew the person! I guess I could have said, 'We know each other from various pub nights and parties' or something.

I agree that social skills are massively in decline. We are a civilisation in rapid decline.

However, the thing about strangers chatting is an issue when it is always a man trying to strike up conversation with a younger woman, and the sense of entitlement he has to her time and attention.
Similar to the way some men tell women to 'smile'.
You know it is pure sexism because these men never try to chat to strange men, or older women, only younger women.
Women used to be socialised to always be 'nice', and sadly many still are, but the tide is turning and more women are now realising they don't need to always be available to random men for conversation.

Of course, strangers should be able to chat as friendly equals, and it is a shame that everyone now has their nose in a phone instead. I see it at bus stops - the whole line of people with faces glued to screens in silence.

I'd introduce people if I was going to have the conversation for any length of time - perhaps not if it was just a quick hello. I think it can be slightly rude, though, to have a long conversation with someone you've bumped into when you're with someone else.

In theory I agree but in reality I’d literally forget my own mums name in this scenario or I know the name but doubt myself! So I often just hope they’ll introduce themselves to each other - at least then I’ll remember the names

Social skills are woeful. It happens a lot. I would never do this.

I've blanked once or twice on the names of people I'm close to, honestly. It might sound ridiculous, and I'm neither shy nor socially awkward, but there's no easy way of glossing over the fact that you've had some kind of temporary brain glitch that means you've forgotten your best friend's name!