So my daughter can use the munchkin weighted straw cups (she took to this cup right away and knew exactly what to do, the first time I gave it to her she was using it properly) and the nuk learner cups. I recently bought her some of those take n toss cups and she can’t seem to get any water out. I feel since the other cups are soft spouts she didn’t entirely rely on the sucking to get the water. When I gave her the harder spout she tried to bite on it instead of sucking to get water. I have also tried the 360 cups and she didn’t understand that either. She didn’t really know what to do. Should I just stick with the cups she knows how to use or does she need to know how to use all different types of cups (hard spout, soft spout etc..) oh and we are currently working on open cup.