The reason is that it increases expectations without a concurrent increase in agency. People tend to describe this dynamic as "always-connected" or something s

The reason is that it increases expectations without a concurrent increase in agency. People tend to describe this dynamic as "always-connected" or something similar, but that verbiage really just scratches the surface of the underlying mechanics. At it's heart, it's all about trying to increasingly make "your time" into "my time", and that's not fair if you go back to our basic assumptions about what makes us human and why freedom is important. Almost every dystopian sci-fi novel includes the theme of humans in some way being enslaved to machines, and this dynamic is the beginning of just such a thing. Here, the machine is not yet a machine but rather another person, but the outcome is the same; it starts to become a form of "attention slavery".