Why do people say that we should grab a coffee sometime, but never follow up?

Posted by Embarrassed-Spite499@reddit | AskUK | View on Reddit | 114 comments

Can't tell if this is a British politeness/courtesy thing or whatever. I just struggle to understand why a lot of people I have spoken to have this tendency to remark "oh, we should definitely hang out/grab a coffee!" and never follow up.

Surely, if you truly wanted to see me again, you'd contact me and schedule a time and place. Why comment on the fact that we should meet up if you never intend to do so?

I feel like it's extremely unnecessary and if anything gives me false hope. I am now pleasantly surprised when someone does indeed contact me later and sets up time to go to a café with me.

Why say something you don't actually mean? Is this just a courtesy thing I'm taking too literally?