I’m a millennial and when I was in university I let people use my computer to send assignments to their lecturers rather than going to the labs a few times. More than once I had to stop them copying and pasting the contents of the word document into the body of the email and show them how to attach a file

Yes and no. Google definitely uses location data to improve traffic details, but GPS has always been able to get some level of data about it, despite being mostly a one way system. I don’t really remember the details, I’ll try to dig out an article