That's how it is in Italy. And that's why Italy is behind every other country in education. Because it hasn't yet made graduating as easy as it is in other places.
Well graduation rate is a pretty terrible way to grade education, especially country to country. You could have 100% graduation rate today by just passing everyone - that's basically what we have in primary education and there was an article here just last week about how most college students are functionally illiterate.
In sweden until high school it's literally impossible to fail. There's no grades and no way of failing anyone.
Then they suddenly become kinda stricter in high school, where your results decide if you can go to university and which.
But I've been to one of the top technical universities and compared to Italy it was very easy. It was obvious the goal was to try and have everyone pass. Still people managed to fail or drop out anyway, although not in the dramatic numbers I saw in Italy for math exams.