What are we supposed to do?

My 1 year old daycare just informed me and like 5 other parents that we can no longer bring Almond or coconut milk to the school for our babies to drink. Apparently it's a peanut free facility and they have two kids in the school that have a peanut allergy. But my baby is allergic to cows milk. They will only offer cows milk and soy. Soy constipates her and I can't give her cows due to Her allergy. We have been bringing milk for a few months now and they are just notifying us. This is crazy because that will mean my baby cant have milk all day until she is home and she is in school from 7 am to 5pm

According to the internet coconut is not a tree but? Can anyone confirm this?