Perhaps, but there's a more likely scenario: the guy is a twunt.
If he needs a Seattle Coffee and yet also needs to use a computer, perhaps an investment in a cheap coffee machine, and some coffee grind from Seattle Coffee would allow him to use the computer and entertain his kid using his desktop computer at home, and on a desk.
If he's just another Mac user who needs to be seen using a Mac at a café (and there are lots of these folks around), then he's a twunt.
I'm not saying all Mac users who use their laptops at cafés can be labelled this way, but this person seems a bit desperate to use a computer at a café. Seriously. WTF? 😕