After you hit full time student, the rest of the classes are free, so I filled my schedule way too full. All my favorite teachers were in the math department too. No regrets. That and I ended up using my math skills when I switched to machine learning engineering.
That must have been cathartic as hell.
No such thing here, have to transfer to another faculty within the university at a totally different location, and it’s not like a semester or two, like full 2 years of classes… which is why no one does it.
On the other hand, non-doctoral postgraduate was free and only a semester plus from my “masters+” degree (I know, it sounds stupid, but it’s how things are here), so I got that.