Research worries – and so do conscious parents – about children’s overexposure to smartphones and screens at large. Remedies go from apps that reduce blue light (not good for your sleep) to coercion. Reducing the emission of blue light may solve the eye and circadian rhythm issue, but makes late night use acceptable. Coercion, well, why not? Parents may need to be reminded that they have a role, after all.
Here is a softer solution: design your own ritual. Send smartphones to bed, at bedtime.