There's a problem with statistics for this and many other things.
Guns attract idiots, idiots have idiot gun problems, it does not follow that if you get a gun, you'll have the same problems.
Similar statistics are easy to fool people with. Doing $expensive_thing is associated with health/wealth/success so if everybody did it everybody would be better off! But in reality there's just a selection bias and whatever the thing is just attracts rich people and the thing has no actual effect. For example: do a study of people who wear sunglasses to find the association between mortality and the price of the sunglasses you wear.
How many people are actually studying gun ownership without intentionally looking for one result or the other? It attracts a tremendous about of bias in both directions and not a lot of genuine curiousity.
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