I have spent years of my working life interacting almost solely through text and email, so this is believable to me.
If you live and work at home alone and don't order out food or socialize it is entirely possible to go days without speaking a word.
I used to spend entire summers alone as a child walking the forest in my backyard with my dog. I would speak to my parents at dinner but most of my world was quiet.
Speaking in person was very difficult for me as college student and something that I know I will never master because of the lack of verbal communication in my youth.
It's obviously not super common, but it is relatable to me that some people do live this way.
