So, bear with me.

Assume that this idea gains traction, and eventually all keys used by human kind sport this feature.

So then what happens when all your keys have that built-in keyring?

What do you put the keys on then?

Each other?

Or does the universe just implode into a giant singularity extinguishing all life as we know it?

Some things shouldn't be trifled with in the Natural Order of Things.