I don’t know, I don’t actually follow serie A, or big football anymore, more because i don’t like the tribalistic effect it can have on people. I prefer to follow my own town team (from Seconda Categoria, Italy has a total of 9 leagues, Seconda Categoria it’s the second last lol). Since there’s little to no money involved on it i always considered it the “real” football

At least for Italy, the teams usually represent your city (Roma, Fiorentina for example) or region (Lazio). Apart from Juventus, Milan and Inter (supported everywhere in Italy), supporting a smaller team often means supporting the city it represents, taking pride in it and of course hoping for the victory and success of the team. I wouldn’t say that victory is the main reason someone supports a team, sometimes it’s also good just watching the team