How often do you engage with a stranger in impromptu/spontaneous conversation?

Genuine Question.

I was standing in the line at CVS, and I turned to the woman who was standing behind me in line waiting as well and said:

"You know those days when you're hungry, so everything sounds good, but at the same time nothing sounds good? What do you get on those days?"

And she said:

"Oh, that's a hard one. If I think about it I guess I usually go for a Chick-fil-A wrap with avocado dressing. That always hits the spot. If you go right now they're probably not even busy because of the time."

So, I said:

"Sounds good. How about I buy you lunch? We're in the same parking lot."

To which she said:

"What happened to normal conversations like this between people? This is how it's supposed to be in the world. Anyway, no but thank you for the offer. I don't have time otherwise I definitely would."

So then it was my turn in line and afterwards I handed her 10 bucks and said well if we can't have lunch together at least have lunch on me. She accepted and we went our separate ways.

...

So, her question got me thinking. And, now, I passed the question on to you all. What happened to normal conversations between people? Do you still engage in them?