Giving a child a smartphone is coming from a place of tremendous privilege. Phone plans aren’t cheap, phones aren’t cheap (at least phones that are usable aren’t). It’s baffling to me that you solved your problem by giving your child an incredibly addicting device that most child development experts compare to hard drugs.
I understand not everything is perfectly literal. However, your literal point is bad and foolish, and if you were making a different one, it's still not clear what it is. So I'm just going to collapse this discussion believing that you didn't really have a point, and were just running your mouth with some hyperbole you coulnd't in the end justify.