14 month old doesn’t want milk

My daughter pretty much only used her bottle for comfort. I tried transitioning her to the sippy cup but she refused to drink her milk out of it. Had no problem drinking water but only wanted her milk from her bottle.

I tried the dr browns sippy nipples and she didn’t want that either. One night I just cut her from the bottle cold turkey cause she was waking 4-5 times a night just to take a sip of her bottle and go back to sleep. It was strictly for comfort.

Well after that one night of cutting her off she doesn’t want milk at all. Regular nipple or anything. She slept through the night for the very first time 🙌🏼

Is it ok she doesn’t want milk? Is it absolutely necessary for her health or is she ok cutting it out since she decided on her own she was done with it