That is not legal in Italy. You have the Italian and Lateran Treaty which shows it.
But be it as it may, so long as a school in Italy is free to hang a Star of David or something else on its wall, I dont see a problem with all public schools ending up with crucifixes and not Stars of David.
It's not legal and they are not free to do it.
It is a decision that is best left to the school principal (who is accountable to the parents in the district), and not dictated by some komissars from Brussels.
Alex, think. Who says that the school principal is accountable to the parents in the district? Investigate before you assume that Italians run their schools like the midwest Americans do.
Even assuming that crucifixes in schools were somehow illegal in Italy, it was the job of the Italian legal system — not of the Hague cretins — to address the issue and promptly realize that it is not subject to legal restrictions what is and is not on the school walls.
Whoever the school principal is accountable for, it sure is not any European kangaroo court. That is called subsidiarity, a perfectly Catholic natural law principle.