But dangerous dogs who attack strangers don’t ask questions. If they’ll bite a strange thief, they’ll bite other strangers without bad motives. Dogs are smart, but they don’t understand “Hi I’m your new mailman”, etc.
Kids were brought up as the reason that pools are fenced. Because adults tend to have motor controls and an understanding of their ability to swim, so pools aren't usually a danger to adults.
By contrast, people of all ages can be bitten by vicious dogs ... and shouldn't be. Yet, they are, in large numbers.
Dogs go to the vet. Dogs jump over fences, they run out open gates. People go to junkyards. There are many opportunities for a junkyard dog to interact with people it shouldn't bite.
No, the small children who are at risk for falling into a pool do not jump fences.
Regardless, if your pool had a history of safety issues, you should be expecting attention from regulators and insurers. Query your favorite search engine for "pool closed following death"
That was just one example of many plausible scenarios. There are dozens of scenarios where dogs and people may be on different sides of said fence. The issue is an indiscriminate danger to people. It's the same reason you can't booby trap your own property.
But dangerous dogs who attack strangers don’t ask questions. If they’ll bite a strange thief, they’ll bite other strangers without bad motives. Dogs are smart, but they don’t understand “Hi I’m your new mailman”, etc.