Random thinking here -
I was read to every day/evening when I was a child, and poetry was included. We were also encouraged to see well-written songs as poetry, and to look at the lyrics. I grew up in the days when record album liner notes were still common and written by very, very literate people. Song lyrics were often included in those notes and the poetry of them pointed out.
As a kid I loved the old stuff, Dylan Thomas, Yeats, Keats, Emily Dickinson et al and was encouraged to appreciate them. Frost and Sandburg came later; Plath I read - but her dark brilliance left me so bummed out for days afterward I swore off her work. Anyway. Lots of poets and poetry.
Then in high school either I derailed or, I'm not sure, I guess it was me. While I have an excellent memory I don't memorize well (I can't memorize a grocery list) - there was a lot of that, which sucked the joy out of it. Then I found I couldn't write the stuff at all, despite all the poetry I'd read. The class became an agony for me. School really made poetry seem like some dense unattainable chore, and that was to someone who already loved it. I remember the other kids just falling asleep in the class all the time.
So, I think U.S. public schools sometimes kill poetry, as they often do history, to the point where graduates won't voluntarily go near either ever again. They hear the word and they shudder. I write history and people just about do shudder when I tell them that.
I still read poetry all the time, old and new. Why? I guess because it's so intimate? Arguably the most personal form of writing. I've never asked myself why. As I've said at other times here, if I feel I'm being condescended to by the poet I go away from that, but that applies for me in any and all forms of writing.
/random ramble