>>47568183Probably because of safety concerns and crime.
Singapore is now the only country in the world outside Japan to have an official Pokémon store. Reasons being high safety and a low crime rate like Japan is. The items there in Singapore are usually more "expensive" (tourist price) than the nip Pokémon stores though. There was a long queue on the 1st day back in April 2019 when it opened, but there was no looting, everyone was queuing in an orderly manner.