Commodore's CEO said in the press release about this phone that he wanted it because he, himself, had become addicted to his smartphone, so he switched to a dumbphone "And my two year-old daughter doesn’t see me staring at something she doesn’t understand for half of the day."

Not to sound overly flippant about it, but that sounds like a "him" problem, not a phone problem? He clearly doesn't see it that way. Instead he's decided that his inability to personally cultivate a healthy relationship to current technology represents a flaw in the technology itself, so we should regress it. Kind of, "Am I so out of touch? No, it's the children who are wrong." vibes.

I'm not a father, so I can't speak with authority, but it seems to me the appropriate approach (given technology's advances will not stop) is to nurture the skills in children that help them navigate the waters, not to drain the sea.