Switzerland going quicker than the US, okay! But talking about the BRICS, bitcoin is the least of their worries from where they stand. May be they could be the least of all unions to adjust towards making bitcoin as asset reserve which would be until their course is achieved. Consequently, Switzerland taking a move of this kind as proposed by their lawmaker would trigger more sorrounding countries in the adoption process should they start seeing positive impact in these countries economy with bitcoin. El Salvador a good example with what they have profited since the country adopted bitcoin as investment asset.
Come on, what's actually the relation between BRICS with this news.
BRICS is just fiat and the value is stable, people will not want to hold something that didn't make them to generate more value, they only use fiat to buy things in their countries.
If The US is officially accept Bitcoin as their reserve, we might see almost all countries adopt Bitcoin as their reserves too. The US give a lot effect to other countries.