If he care the dog so much, the question is why is he trusting it to some stranger ?
Your kids? Schools, daycares, after-school programs, schooltrips, babysitting; let them do anything on their own? All stranger interactions.
At most you get transitive trust. But that doesn’t amount to much.
No, the main reason we’re able to sustain this model is that we believe in two big functions:
1. Most people operate nuetrally, if not well.
2. We have a strong deterrent for the biggest misbehaviors/risks by strangers, through government reprecussion.
You want to not rely on trusting strangers at all? I’m not sure you can do that except by exiting any major population, and returning to reliance on small, close-knit communities, and strong family-oriented relationships (eg first, second and third generations of family living in the same small circle).
But thats a far more substantive change than I think you’re imagining.
My wife and I, for example, won't leave our cats with a company, or even someone the vet knows. We would rather buy an automated cat food dispenser and have a live video feed to make sure it works. We've done that for 2 very short trips away. We're not parents but for us, things like Day care, school (at all - we would have homeschooled), babysitters would have all been out. The risk would be too high for us.
However all that said Wag didn't do the right thing here.
But the same is true when I trust my kid to myself; its a fact of life. Things can happen. It’s not like I can stop a car from running my kid down in every possible scenario, even if I’m naturally more careful and self-sacrificing than a paid stranger would be.
But that’s not a particularly insightful fact, and that certainly doesn’t excuse fault/misbehavior.
It’s not a useful sentiment to express in general, and unless you’re trying to argue for not trusting in strangers at all, I’m not sure what useful conclusion you’re trying to reach.