Warming Milk?

I have EBF thus far aside from table foods. Since my girl just turned 1, we’re introducing whole cows milk (per her Drs recommendations because she is very tiny). I tried 2 ounces cold in her sippy this morning and she didn’t hate it, but also wasn’t enthused about it and only drank a few sips over the next little while. Dr recommended 16oz per day after working her up to that amount. She’s used to juice and water cold in her cup, but obviously milk being warm. I wanted to try to stray away from getting stuck always warming the milk and wanted to try to swap since it was in the sippy now instead.

Do you warm the milk (cows/oat/almond ect) now or will your little one just drink it cold?