I just don't know people that still use Facebook with any regularity. I understand selection bias is at play (I'm inclined to hang out with people like myself, and I think Facebook is a flaming trash-pit).

I made friends on Facebook years ago. I felt fundamental changes in both the user-base and use-cases that I don't find enjoyable. I assume most people under the age of 40 feel similarly, and those that don't aren't the type of person I'd want to be around.

I'll rephrase: It's not that I assume nobody is making friends on Facebook in this day and age, just that I'm less likely to want to befriend them myself and I was applying this personal assumption unilaterally.