So it did some research on this:

"In Europe, some men sit down to pee, while others stand. It's not a universal practice, but a survey indicates that German men are among the most likely to sit down, with many reporting they do so "every time" or "most times". Other European countries like Sweden and Denmark also show a significant percentage of men who sit to pee. However, in other countries like Poland and the UK, fewer men adopt the practice."

So you're Geman. Now it makes sense, why it's normal for you, if that's how Germans are rasied.

It's not normal in Canada and it's looked at as feminine so no one does that here.