My son has had so much trouble with drinking from an open cup. I’m not sure if it has something to do with his ASD or not, but we’ve tried the 360 cups (about 4 different brands) and he just gets super frustrated with them. He’s been happy with the good2grow bottles, but I noticed the little silicone pieces in the center of the spout can come out when washing, so I threw them all away due to me being afraid he’d choke on those little pieces if they came loose while he was drinking.

I’m sorry if this is a dumb question, but how do I teach him or encourage him to drink from an open cup?