From a classical liberal perspective, Switzerland's governance seems utopian. Low taxes, good services even for low income people despite the low taxes, very decentralized government, and it really does seem true that "no one bothers to know who the president is".

My big question: what's the catch?

Like, what stops every other country from adopting a Swiss-style political system?

(This is not a rhetorical question, I'm actually curious)

Can any country change a political system without massive disruption? Is it easier to try to incrementally tweak and improve systems that are already in place to avoid said brutal disruption? 

Courage and perseverance of the people?