Do babies need to be drinking water at this age?

meagan • ♡𝓶𝓸𝓶𝓶𝔂 𝓸𝓯 𝓽𝔀𝓸 ♡

My little guy won't hold or drink from his sippy cup. I've tried 4. Anything I can do to help him learn? Right now we're using the munchkin weighted straw.