If you're a millennial who spends a lot of time reading about millennials online (as one does), you've probably noticed that you don't quite identify with every single trait attributed to millennials. You might also notice that you don't really understand all of the millennial pop culture references, or that you don't remember all of the things many discuss from their childhood. That's because there are two types of millennials: older millennials and younger millennials. There's actually a distinct divide between the two groups, even though they are technically part of the same generation, which is why there are some facts all older millennials know that will shock young millennials and not older ones.
While it isn't actually official, most demographers agree that millennials refer to anyone born between the early 1980s and the early 1990s. That's a pretty big age range — someone who was born in, say, 1992, grew up a whole lot differently than someone who was born in 1981. For example: I was born in 1987 and my little sister was born in 1994. We're both technically millennials (although she's on the cusp), but our childhoods were incredibly different.
In general, younger millennials refer to anyone born after 1990, although again, the term isn't official. Young millennials are probably in their early 20s right now, the people who were born juuust before Generation Z came about. These are the people who probably didn't have to wait until their sophomore year of high school to get a cell phone. They probably don't know what it was like to rent movies from Blockbuster or to download music illegally from Napster. Sure, some young millennials might be aware of old millennial stuff due to older siblings, but in general, the way the two groups grew up is pretty different. Here are a few more examples of facts that will shock young millennials: