I was forced to go (practically at gunpoint) by my mother to high school. I went. It rained, so it was short (we were outside in the rain, yes. We voted for it). The saludatorian did the famous monologue from Trainspotting as her speech. The slightly aghast expressions of all the parents made it worth it.
I went on the condition that I could skip my college graduation.
Again, my mother forced me. My mother, my dad (they’re divorced), and his relatives all came. Though the Buddhist prayers (hippie college) and girls with fairy wings on their robes was fun, I would have rather done without.
Grad school, damnit, was my decision! Its a Masters’ degree, I can think for myself! … But mom made me go anyway. I was sick (migraine), and it was a three-hour pre-dawn drive, cleaning my old apartment for about 2 hours, and then the drive back.
If I ever get another degree, I’m not telling my parents until it’s already framed on my wall. I don’t like school, I don’t like my peers, I don’t like my professors, and I CERTAINLY don’t like ceremony.
The not-getting-a-degree-thing -if-you-don’t-go sounds sketchy, because in both high school and undergrad, you weren’t sure whether you passed your classes or not until graduation, because the grading was so tight. In both cases, they provided a fake diploma so that students wouldn’t be shamed in front of their parents if something had gone wrong, and mailed the real piece of paper. IIRC.
As for school prayer, I’ve sat through them at every graduation ceremony.
If you do, go, have a great time.