It took me 2 applications, a lawyer, and 9 years (of 11 years living unhoused) to prove disability that has to be reviewed every 2 years because somehow, magically, I will suddenly not become "disabled" anymore with permanent conditions.
The "welfare queen" myth is racist and false. There might be some people who try to cheat, but it's incredibly laborious and not very profitable to do so, and the penalties are draconian.