Bests & Worsts Reviews from Amazon

I’m so confused by how many positive reviews these cups are getting. I totally got sucked into buying these because I focused on the star rating and didn’t read that you had to bite, add pressure and then suck to make the straws work... wait... what?! This is reversing what my son already knows about drinking through a straw. He’s 14m so he can’t drink from an adult sized straw&cup which is why I bought him these but it’s SO hard to drink from. Total waste of money and I usually appreciate my purchases and leave good reviews but... I cannot praise this at all. Parents should we warned about these challenging cups. They are too much work to drink from- my son gives up.