I have it from reliable sources that Croats generally consider everything South of them to be Balkans (but not themselves). In Slovenia itβs accepted wisdom that Croatia fully belongs but Slovenia not. Austrians generally consider Balkans to start at their Southern border - i.e. including Slovenia. Bavarians are of the opinion that Austria fully belongs as well and Northern Germans see Bavaria as part of the Balkans as well ππ€·π»ββοΈπ€ͺ
As for having a beer from a can or bottle, have shared the odd one with many a refined Northern European, too, so thereβs that ππ»