There are two strong practical arguments for no means-testing. The first is that these programs are much cheaper and easier to administer. The forms are simple

There are two strong practical arguments for no means-testing. The first is that these programs are much cheaper and easier to administer. The forms are simpler, there is less opportunity for fraud, the programs are easier to understand so less outreach is required, etc. The second is that such programs are much more politically durable. In the US, compare the ever-teetering Medicaid or TANF with Medicare or Social Security, which enjoy broad support.