The Singapore govt have been very strict with covid and in the early days of the pandemic, they managed to keep the numbers and deaths very low. The population is now 85% vaccinated. This new rule about charging for treatment for covid for those who choose to remain unvaccinated is not surprising for Singapore.
Some facts people may not know about covid in Singapore: until very recently if you tested positive, you were automatically taken into a govt facility, even if you were asymptomatic. No exceptions.
You can only dine out in 2s but from this week 5 people from the same household can now eat out together but they have to provide official proof of address. No music in restaurants (you might have to talk louder to be heard and spread the virus) No talking on public transport for the same reason. Only 2 visitors per day allowed in your home. You can only visit 1 other house per day. Groups of only 2 people allowed to walk together outside. Masks still worn outside unless for strenuous exercise. 'Covid Ambassadors' patrol streets, restaurants, malls and public transport to enforce the rules and hefty fines are imposed including removal of work permits and immediate repatriation. Until very recently, expats had to get govt permission to re enter the country, many families have been separated for 2 years.
The country has only recently opened up to fully vaccinated tourists from some countries but they have to arrive on designated fully vaccinated flights. These tourists can't eat out with their family because technically they do not reside at the same address, they are only visiting. Imagine your mum flying half way round the world, you haven't seen her for 2 years and you can't take her out for dinner.
The general consensus is that the removal of free covid treatment to the unvaccinated will encourage uptake and allow a relaxation of restrictions, helping people to live a more 'normal' life. It's estimated that costs are on average $30,000 SD per hospitalised patient.