That’s sad man - I also talk a lot to strangers and yeah most of the time you get average people, but then you meet that one in a million person and learn something truly fascinating or expand your sphere of knowledge or emotion or art or whatever. I’m always on the lookout for the next brilliant engineer, sensitive artist, or just a well read janitor.
Wouldn’t you consult a book or a video and practice a skill if you really wanted to expand your knowledge? And a “well-read janitor”, while certainly possible, is a trope more often seen in works of fiction. And what does “expanding your emotion or art” even mean?