Regarding refusing to grow up, I have always been told over the years (since 1940) to "grow up" usually after some prank. I find now days it is more expected, i.e. dad jokes etc. and I can easily slip into my "second childhood" unnoticed.
I dislike the whole generational lumping thing. It's just one more way to shove individuals into some group identity they may or may not share. Opinions, thinking, that stuff doesn't move with any clockwork precision.