Why so slow?
Because a phone-free evening is only sustainable if the evening it replaces is better. Building that takes longer than deleting an app, and rushing it is why the fast version rebounds.
What if I live alone and the phone is my company?
Then be honest that connection is the need, and meet it directly: call someone, make a plan, join a thing that meets weekly. Silence isn't the goal, and an evening alone with a phone often leaves you lonelier than one without.
Do e-readers count?
An e-reader with no browser and no notifications is fine. A tablet with your apps on it is a phone with a bigger screen.
What about audiobooks or music?
Both are fine. Anything you start and let run isn't the problem. The problem is the thing that never ends and asks you to keep pulling the lever.