I think it’s mostly bad for a developing brain because it fuels dopamine-driven short attention span and on that level alone is comparable to zoning out on drug

I think it’s mostly bad for a developing brain because it fuels dopamine-driven short attention span and on that level alone is comparable to zoning out on drugs. It is basically child maltreatment in the form of neglect, first parent-child-neglect, continued into self-neglect. Neglect as a silent form of abuse is one of the most damaging and difficult to treat in psychotherapy.