Funny enough, Singapore is one of them.

Singapore is absurdly rich by global standards. Dishwashers are rare: it's a combination of eating out being really popular and perhasp many people having maids.

Thus basically the only (domestic) dishwashers in the country are high end contraptions mostly acquired by expats.

This is true in New York City, more or less. Even if you have a good salary, you are likely to share washing machines with others in the building.