I think we all personally want safety for grandmas in that way.
Unfortunately we can't all control that. When my neighbors moved here they chose safe neighborhoods that had little violence / crime. Over the years the demographics have changed immensely, and crime has soared. Many people here are stuck, they want to get out but housing from here to an hour outside of town has gotten so expensive it doesn't make sense.
No journal of anything that compares the USA to Japan and crime or shootings debunks anything.
No other country in the world has the same challenges that America does. I'd love to live in a place that has real social safety nets and does not have the Latin American countries a hop skip and train away ( https://www.businessinsider.com/latin-america-is-the-worlds-... )
but sometimes it's best for you and grandma to have a condom and not need it than to need one and not have it. Even if you want grandma to never have to worry about stds.. they actually happen a lot, want it or not.