When Mackenzie was 5.5 months, I took her out to my local café for a cup of tea and biscuits. The food came with a carafe of water and a small cup. I took a sip of water and realized the cup is the perfect size to feed a baby, so I offered some to Mackenzie. She took it immediately. Some water spilled, but it wasn’t a big deal compared to giving her a new experience. She drank more every time I offered it to her – she clearly enjoyed it.
Now, one meal per day, they drink water out of a small glass cup along with their food. There’s quite a lot of spillage, but they love it. Another step toward independence.