Not all gun violence includes crimes (suicides), and not all violent crimes involve guns
I imagine it's stuff like these 2 articles linked in the op
https://apnews.com/article/gun-violence-science-health-covid-mental-20f5e2cb5fb50ff747fe316fdc4db5c4
https://apnews.com/article/violence-mass-shootings-summer-b004331ee7d3da95bce6646547f8d43f
The study shows gun violence rising, and that does include suicides. Though its most likely spurred on by the mass shootings mentioned in the second link. Taking those together explains the proposed measures.
Don't give JK Rowling your money
Everything can be done with the other scale if you're willing to think about it
I generally agree that metric is better, but there's an argument for Fahrenheit.
It was based on human body temperature, so its easier to inuit if a temperature "feels hot"
Gen alpha are literal children. They don't know what a lot of things are
Shape Rule
[A person offering a second person a Klein bottle. The second person rejects the Klein bottle. They have a plate of regular three dimensional shapes in front of them. They have picked up a rectangular prism on their fork. In the upper left corner is the text: "No! A responsible adult says no to non-orientable shapes"]