According to you, they don’t. They only need to get on the government teat, which would pay them more than a minimum wage job.
Why do you have a higher regard for those on the government teat than those in food service?
I don’t. I just don’t believe in tipping except when the service was really good. Their employer should pay them, nobody forced them to work for that wage. I also didn’t tip the cable guy or Fry’s electronics when I bought the laptop.