I also support a shift to UBI, but your description of TANF/WIC is not grounded in reality. TANF has a 5 year lifetime, and many states actually have lower limits food stamps do not come close to covering the costs of feeding a family People do sell food stamps sometimes, not because they have more than they need, but because they are desperate for cash to pay for other necessities such as utilities.
The idea that people are getting by for years and years based on these as sources of income is a myth.
Thanks, to clarify I don't begrudge TANF/WIC but those two are a short list of benefits that are available. Rent assistance ($), daycare assistance ($), free healthcare that's better than what I can get on the market regardless of $$$$, etc. I explained in other comments how a lot of it works, and I think rather than means testing I would like to see a different form of enforcement for these programs.
The idea that people are getting by for years and years based on these as sources of income is a myth.