I'm glad I'm NBU 
This student also seems to avoid sending emails if she can help it. I know I am old-fashioned, my work emails are generally written like letters (Dear Firstname,... Text in full sentences... Best wishes). I get one-line, 4-word, half-sentence replies from her, if she replies at all. Earlier this week, I had to leave early and left her to collect the last set of readings from her experiment (all done by computer, very simple), told her to email the file to me so I could process the data in the morning before she arrived. No email arrived, of course. So I had to do the desk-corner-look-dance the next morning until she arrived, then ask for the file, then process the data, before we could get into the lab (couple of hours of delay).
Don't get me wrong - I understand the horror of initiating any kind of interaction or conversation. e.g. I still have to psych myself up before making a phone call, and if I can do the thing by email/text I'll always choose that.
But some of these young 'uns seem extra extra avoidant of even the most basic and common interactions. I wonder if it's because technology means they've generally never had to even try to overcome their natural reluctance to interact with others?
I sort of recall, as a small child, being terrified if my parents told me to ask in a shop for something, request the bill from the waiter, etc. But in those days you had to learn to do it else you'd never get anything done. Now for example, my DC never have to ask the bus driver for a child ticket because they pre-buy said tickets on their smartphone app. Once, they happened not to have any tickets ready and were frantically trying to buy as we were running to catch the bus. I said, "Don't panic, just buy from the driver!" and was met by wails of despair, "But then I have to speak to him!!" And I think my DC are quite well-trained in the matters of speaking-nicely-to-people-to-obtain-services and polite-social-conversation-with-strangers compared to some others.
I would be totally on board with Bint's teen-homing test!