Everyone except developers uses their smartphone (yeah right)

Or so I was told. The argument usually goes like: I have N friends and all are using smartphones only. I even encountered something in tune here on HN. Today I walked into some trendy cafe with like 20 tables being occupied. Most of those were on laptops. I do not think they were "working remotely" as no one was really "abusing" keyboard or mouse. By the look they were either reading or watching some videos.