Are there correlations between performance and preferences in school, and party affiliation? Apparently so. For example, the Greens at school sucked in Maths, and history, and like dsocial studies. Well, their politics showe. What a surprise!
https://www-welt-de.translate.goog/debatte/kommentare/article239380457/Allensbach-Umfrage-Gruenen-Waehler-waren-frueher-schlecht-in-Mathe.html?_x_tr_sl=auto&_x_tr_tl=de&_x_tr_hl=de&_ x_tr_pto=wapp
Let me know whether or not that link works. I have technical issues with Google.