Babies and liquids

Is anyone giving their babies water in a sippy cup? My mom keeps saying that I should give her liquids (water, milk, juice) and I’m irritated. Stfu. 🙄 (she keeps saying if I don’t give her milk and water she’s gonna hate it later, so I asked if she gave it to me and she said yes... well, I HATE MILK and it takes me literally 24+ hrs to finish a small 17oz bottle of water).

She breastfeeds every few hours still, and diapers are wet at least 6-8x a day. She’s fine. But I am curious if anyone is giving their babies anything other than breastmilk or formula?