When it comes to Cass and language I like to think that even though she eventually learned how to speak and write and has to use it on a daily basis that is obviously not her preferred method of communication. Cass only had to start grappling with the concept of verbal language at 17 and so she’d developed her own kind of communication, esp w the people she’s most comfortable with she’d use a mix of gestures, facial expressions, body language and simple words; things that she’s most used to and could use to express herself more freely.
Her friends and family having to deal with her being mostly non-verbal would also force them to get better at interpreting and using facial expressions and body language to express themselves, also making it easier for Cass to understand them back.
