In Switzerland the half-direct democracy works very well. I wonder why no other countries have tried this system. In direct democracy the people decide how the

In Switzerland the half-direct democracy works very well. I wonder why no other countries have tried this system. In direct democracy the people decide how the consitution gets changed. One guy can change it with a nationwide vote if he gets 100,000 signatures in a limited timeframe. And the populace will therefore carry the decisions made.