Dr.Henri Breault
most of them are but there are really smart kids that knows how to open such containers.
a medication bottle
Colin Murdoch from New Zealand
they work up into a certain age
it depends on the container and the factory its made in
dr.henri
Metal
If you mean the caps , one side is a child-proof attachment , the other isn't .
1.If the medicine bottles did not have child proof caps because if it's kept on a low shelf or a low place a child can pick it up,open it and drink it. 2.Some medicines are gassy like cola so if a child might try to open it,it can burst open and hurt the eye of the child. 3.Medicines are drugs so if the child overdoses it,it gets a serious situation. 4.Some caps are made of steel,steel is sharp and sharp things might cut your child's hand.
Proof and Bizarre
Yes, there are several smell-proof dog poop containers available on the market that effectively contain odors. These containers are designed to seal in the smell of dog waste, keeping your surroundings odor-free.