Years ago, I had a Chinese friend who told me that her brother had worked at a Chinese buffet in the Mid-West when he first came to the USA and spoke almost no English. They had been given uniforms with no pockets and had to turn all tips to the manager. They never saw them again.

This would be illegal in most states, but I now keep an eye open at restaurants and have seen numerous examples of no pocket uniforms. Indeed, there have been a lot of lawsuits over such things with the restaurant usually claiming that "giving" the tips to the manager (or owner) is perfectly okay.