DS is 21 months old.
He's never got to grips with drinking from a sippy cup. I've got all sorts of cups/teats.
He'll happily drink water from a bottle but he has to stop this. So now we are using a Noby cup with a soft teat & going from there. The teat is sippy cup shaped but soft.
He still has milk from a bottle morning & night.
Also, he will not feed himself his water/milk.
He is BLW so feeds himself quite happily messily
I can't understand why he won't drink by himself. He's given enough opportunity to try & do it himself!