[mc32]

But aren't parents supposed to keep dangerous chemicals away from the reach of curious children?

They can be told over and over of the dangers, but get a few together and all those warnings can flee their brains. If the stuff is inaccessible, then they can't --I mean, unless they're insolent, but most children will refrain from braking into locked closets. Leave things out and it's a different story.

[smsm42]

Yes, they are supposed to. That's the whole point - it's parents' responsibility, not yours or government's.