As a parent I do like to see the milestones, but a lot depends on the mindset of the adolescent in question at that particular moment. A hundred years ago I thought HS grad was OK but we had no party. And I was so hung over for my college grad ceremony that I was only happy my family was there to get me moved out of my room. (They weren’t as pleased.) My oldest wanted an open house for HS but chose to graduate a semester early and slipped out of college without ceremony last winter. The second kid never wants anything. (He even fought off a ceremony for his Eagle Award in Scouts.)