I heard this thing that humans are tribal creatures and in any group, family, friend etc, they will invariably develop their own language, and they didn’t mention it but generationally specify slang is so much more beautiful when viewed through that lens. So even if it’s an old person thing, for those of us privileged to be able to stay on this earth that long, it will still be your tribes language and you will feel at home saying it. And that’s all that matters.