The California Supreme Court speaketh:
In a case that affects thousands of businesses and millions of workers, the California Supreme Court ruled Thursday that employers are under no obligation to ensure that workers take legally mandated lunch breaks.
The unanimous opinion came after workers' attorneys argued that abuses are routine and widespread when companies aren't required to issue direct orders to take the breaks. They claimed employers take advantage of workers who don't want to leave colleagues during busy times. ...
You can see where this goes. The same place that "overtime pay" disappears to.
How this plays out over time: subtle little hints about how now is not a good time to go eat, glares from supervisors when people get up from their desks, things like that. And suddenly, "workers don't want to leave colleagues during busy times."
In the go-go nineties, I argued with a Disney suit about how a "working lunch" around a conference table wasn't really lunch. I kept saying that the company was obligated to let people exit the premises to eat, and that a sandwich at a meeting didn't qualify.