This is tough to read but I feel sympathetic about the honest way you shared this.
I have heard this from others too. One of my most traumatic memories from childhood was seeing someone do something to one of my favorite kinds of animals that I will spare readers here the horror of imagining. It haunts me to this day. That colors my perspective.
Children have incomplete brain formation. I’m not sure it’s an excuse, but it’s context to understand. On the flip side, a parent would need to be helicoptering to an absurd extent to detect a child messing with something as small as most common insects (at least in most US places).
Thanks for escorting them or leaving them alone!