By subsidize housing you mean that the government builds housing which they then sell to citizens. Which is a form of middle class welfare, but quite different from what most westerners would consider subsidized housing.

If you’re unemployed in Singapore, you get 3 months worth of welfare from the government. After that you rely on your own savings. (Unless you’re permanently disabled)

Going from first principles though, Singapore has a large ethnically Chinese population which tends to take care of family members / elders more than in the west.

Unless western countries are willing to adopt a culture of filial piety where you can live with your parents until you’re married and your parents expect you to take care of them in old age, I don’t see them replicating that feature.

It’s very controlled beyond prostitutes , helpers (maids) and labourers. They even specify which race and sex can do which job . Construction bangledesh (and some others) under 60. You must employ 1 local at 1400 a month to employ 7 Bangladeshi with no minimum wage and house them 24 to a room in what they call a dormitory , some might call a labour camp where COVID was out of control.

Helper , female under 50 https://www.mom.gov.sg/passes-and-permits/work-permit-for-fo... sourced from certain country’s only , At the professional and executive level it has been capped at about 200k and lowering for the last 10 years (out of about 6mil )