Were this true, we wouldn't be discussing it. This is not an issue from hundreds of years ago, this is the reality lived by more than a billion people every day. There are places where attacks from feral dog packs are a present concern (example, example), there's countless reports about this it truly is not difficult to verify. How would you approach this, if you had less than $2.15/day to survive on? A thrown rock is a great deal more effective at addressing the problem than even the most fervent moralizing.

I’ve faced a lot more hardship than you

The playgrounds I grew up on could only be visited while armed guards were there. That many children in once place made too tempting a target to be left otherwise unprotected.