This is in fact the norm in most countries.
https://www.straitstimes.com/singapo...usehold-income
Change from using individual income as basis, one subsidy range for B2 and C class wards among healthcare revamp
https://www.straitstimes.com/singapo...usehold-income
Change from using individual income as basis, one subsidy range for B2 and C class wards among healthcare revamp