Since when did something working in another country mean it would transplant successfully to the UK? History is littered with failed examples, from 24 hour alcohol licencing through to nationalisation of essential public services.
It may be a basis for looking properly at an issue, but glibly pointing at something happening in another country and proclaiming It works there so it'll work here is misguided at best.
I agree with you in principal - my comment was refuting a point saying that 'ALL traffic must be required to stop'. How this is implemented can be up for debate, but undoubtedly we can learn a lot from other countries/people. After all, the people of the world are broadly the same.
I seer the biggest obstacle here is changing decades of road user behavior. A sudden overnight countrywide change in regulation would undoubtedly result in a rise in casualties, the clever bit would be how to introduce such experiments and changes.