Maybe with training, your grandma could enjoy plinking targets and also be safer in her home?
There are grandmas that love hunting and spending time at the range.
It'd be nice to live in a world where nobody ever commits acts of violence. Unfortunately, we banned violence long ago, and it seems that criminals are still doing it anyway. The next best thing we can do is be prepared.
Guns don't go bad, after all.
(And if you count things like the Holodomor, Holocaust, Cambodian Genocide etc as murder, I think the correlation between 'murder rate' and 'civilian gun ownership rate' takes a decidedly different slope)
A lot of people want to compare because money or gdp is similar or whatever - but they are all totally different.
I'd love to have the same kind of social safety nets that many Euro countries have, I think much of the US violence in related to the lack of stability in families that is a reflection of financial insecurities honestly.
Other things like the value of the drug markets here, and the quick access of Latin countries to here ( https://www.businessinsider.com/latin-america-is-the-worlds-... ) - make a huge difference. comparing stats about any other place is just apples and oranges.