I grew up in a Mediterranean country and live in Northern Europe now and I think your observations about the different attitudes towards alcohol are very accurate.
Drinking is very common in Southern Europe, but there feels to be a very negative attitude towards drinking to the point where you lose control and do utterly stupid things. In Northern Europe, I have witnessed young people in many settings openly sharing stories of binge drinking, getting in fights, getting kicked out of bars etc. and laughing about them. When I was back in my hometown and shared some party stories they were generally encountered with shock.