a little more change to 'ny' city . ---
NYC schools adding 2 Muslim holidays to calendar New York Post --- just some info !!
Seriously - what is wrong with that?
School holidays are very regionally decided and influenced by the local demographics. In areas where there are a lot of Muslim families, adding those Holidays make sense. I work at a state university. Holidays are set by the state, and counties or insitutions can also set aside some holidays as "Days of Special Concern". Our state only has Good Friday and Christmas as state wide religious holidays. It makes sense, we do not have substantial Muslim, Jewish or other religious communities. But our schools list some of their holidays as "days of special concern" whereby teachers should be sensitive (not punative) to students being absent.
Schools are driven by the needs of their neighborhood. That is not a bad thing. Expanding it to include other faiths is part of what it means to be American. Here is an article on an attempt to include Diwali as a recognized Holiday. It makes sense.
It hurts no one.