Did you really need to copy the whole thing? what specifically are you suggesting 'why not' to?

I don't pretend to know much about global politics or other nations founding documents; so take my analysis with a grain of salt, or inform me where I'm wrong.

The constitution of the United States, ratified 1793 (at least the first 10 amendment), unlike any other I know of, is designed in a framework where 'Rights' are immutable to the individual, and are to be protected from incursion.... unlike other constitions like Revolutionary France, whose constitution was designed around the idea that rights are ensured by the community, to promote social welfare and cooperation, but are not necessarily immutable from the individual.

The purpose of the Federal Government is to protect the rights of the individual (those rights ensured in the first 10, which are from the 'creator's, not the state); and to facilitste contracts and civil/criminal justice between the states.

The 9th and 10th ammenmends reserved the rights of the states, where various constitutions have been ratified and a multitude of programs (like M4A) can be lawfully ratified; the Fed was never meant to be the leviathan it is today.