Is the SST a good idea to replace the GST?

I HOPE to share my views, as a tax specialist with a thorough understanding of GST, on the preference for GST instead of SST. GST/VAT has been perfected today by several generations of international tax experts since its implementation in France in 1954. SST has been abandoned by the world and there are no special benefits of its re-introduction. What are the benefits of implementing this tax regime? GST is in line with international systems of indirect tax and SST is going against the world trend.

If the Pakatan Harapan Govern-ment must implement the SST, please tell the people what are the benefits of this tax regime. Why are there no countries in the world which use SST?