For context I teach high school. I had this conversation with my 11th graders like never a day in their lives would they believe someone pushing 30 is in the same generation as them.
Then they asked if I’m a millennial and my student was like “Nah millennials are in their 40s”.
I proceeded to explain the birth-year range for millennials and for Gen Z and he asked “but why am I in the same group as adults if I haven’t graduated from high school?”
It just goes to prove despite some collective experience, the concept of generations feels arbitrarily defined even for kids.