When I was a kid we found some berries in a field, but we didn’t know if they were safe to eat. So we asked our parents, they didn’t know either, they told us to ask our great-grandmother since she was super old she might know what the berries were.

So we took the berries to grandma and she looked at them for a second and then immediately ate the all of them.

“So… they’re safe to eat?”

“Come back tomorrow, if I’m still alive they are safe to eat”

She reasoned that she was old and if the berries killed her it wouldn’t be a big deal. But if one of us kids died it would be a huge tragedy.

So from that experience, I’m guessing it wasn’t children that tested if things were safe to eat it was probably the elderly.