Also with her tutoring, why on Earth does she still use her phone as a whiteboard when she's got the Microsoft surface? As someone who tutors online I cannot imagine how using her phone with this thick stylus would be comfortable and readable for the student – sure, someone may not be able to afford a graphics tablet/iPad, but when she already has a perfectly good device, can she not spare 15 minutes of her time to google how she could use it? Or ask someone? I can think of at least 3 ways she could make it work with a MacBook.
Might be a petty thing to point out, but with how much she charges I'd expect her to do everything she can for the sessions to be high-quality, and I can't imagine notes written on her phone with a non-bluetooth stylus are that. Especially since she basically abandon the Surface when there are so many people who would need a new laptop but can't afford it.