I disagree. You'd be correct IMHO if the welfare stopped if the worker quit his Uber or Walmart gig.
If a poor person has two income sources, either source is less essential than if he had just one of the sources. The less essential the pay from the Uber gig, the less Uber can squeeze the worker.
...wow, this is a really great case against welfare work requirements! You're basically just subsidizing the companies that pay their workers the least.
Without the work requirement, you're actually helping people.
The admin overhead for work requirements is also very much not worth it. It's basically just mandating extra paperwork and if you file it wrong you can't eat.
The reason we have it partly that welfare recipients literally don't like getting welfare without strings attached because they think it's embarrassing (or that the other people getting it don't deserve it), and part that states are hoping to save money by kicking people off for doing the paperwork wrong.
EITC is a way to do "work requirements" without the downsides.
No. Giving people money (or food) increases their negotiating power, which lets them ask for better wages from whoever else is paying them. Uber is especially weak to negotiation because you can just drive less or switch to Lyft.
You're actually arguing that welfare is bad - if giving people welfare allowed Uber to lower their wages that means people would be better off without it.