Do Masks Hurt Speech Development? It Depends on the Child. (2021, September 20). Undark Magazine. https://undark.org/2021/09/20/do-masks-hurt-speech-development-it-depends-on-the-kid/

Child-directed speech (CDS) refers to speech from a caregiver directed towards a child, as opposed to overheard speech - for example "Is lil'timmy ready for a nappy wappy?" Speech acquisition in children is an area of particular interest for linguists because it has significant implications for later childhood development and socialization. This article is not directly concerned with language acquisition, but rather the sense of forced infantilization that users of many major applications such as Venmo or Yelp feel is being imposed on them. Still, this is an interesting way to frame the topic of app design and the implications it has for the relationship between users and companies.

Source: Shneidman, Laura A., and Meadow, Susan Goldin. “Language Input and Acquisition in a Mayan Village: How Important Is Directed Speech?” Developmental Science 15, no. 5 (September 2012): 659–73. doi:10.1111/j.1467-7687.2012.01168.x.