Sometimes, “you” does not refer to any one person or any one group of people. Instead, it refers to anyone or everyone. In these cases, “you” has the same meaning as “people”:
“People have to work very hard to make a dollar these days.”
“You have to work very hard to make a dollar these days.”
- I'm sure they will sell a new model of this phone next year
You can use THEY to talk about one or more people when we don't know who they are (= somebody)
- I went to buy a Keenix camera, but they had bought the last one
- They broke my window yesterday
One who regularly listens to this show does tend to wonder about these things.