But we're not talking in such simple, pedestrian terms. Addiction can be psychological, physiological, or both. What we're discussing here is a psychological addiction which is manifested in poor impulse control. As such, a parent could remove the device without being an asshole ammosexual while still reaching the intended result. Worked for my 4 year old and my 13 year old. Now screen time is moderated and all device cameras are disabled.
BTW, people killing over poor impulse control (taking a cell phone away) should not be given mental diability status. Their poor behavior is just a product of their parents doing a shitty job.