Joey and I introduced Audrey and Antonino to sippy cups when
they turned a year old. It took them a while before they found THE cup. They
tried everything from soft spouts to hard spouts to those flat lid types where
liquid comes out around the sides of the cup when you suck on the edge of the
valve. Still no luck.
Then, we made them try straw sippy cups. They LOVED them.
Joey and I... not so much. Why? Because they turned out to be the most
difficult to clean. We also read various product reviews which said that some
sippy cups have internal components where fluids get trapped, causing mold to
grow. What's worse is that in some cups, those components cannot be
disassembled. Some parents even sawed through the lids of their kids' cups and
found mold. Yikes!