it was bad design
I'm so old, I remember when cars came without safety belts. But hey, you could add them yourself.
Kids pyjamas would be so inflammable, they would turn your offspring in a burned crisp in seconds. But hey, a parent should keep them away from open fires right?
It is bad design. And the only way it will be corrected is to enforce it by making them pay for the damages caused by their stupidity.