I can easily imagine the phone use and the kid's insecurity both coming from the same underlying family dynamic, rather than one neatly causing the other
Being ignored because someone is staring at a phone absolutely feels different from them just being busy. At the same time, asking teenagers how much their parent's phone use bothers them and then finding that the most bothered teenagers feel less secure in the relationship is not quite the same as showing that the phone caused the insecurity
The worrying part is not just that banned substances show up at trace levels, but that a non-trivial number of products were apparently over the legal limit
The more interesting question is whether you can make higher levels of government depend more explicitly on lower levels, instead of the other way around
I agree with the second point especially. What stood out to me was not just that Django endured the bureaucracy, but that he remained grateful and composed through it