Since most of waiter's salary is in (unreported) tips, the Central Bureau of Statistics' figures are less accurate than usual here. This is not a very good counter argument to what Michaeli was saying. I would argue that the crux of Michaeli's argument holds; waiters, and even kitchen workers in Israel are younger and more temporary than than most cashiers.
Turkish warplanes attack PKK targets after soldier killed in attack (Reuters)
from the article: The fact-checker: Who really looks after workers on Shabbat?