Not eating in front of people is such a deep fat people thing. Fat people do that not because of some internal drive, maybe sometimes,. But overwhelmingly that is prompted by direct behavior from people in their lives. A couple years ago we had an open cubicle where someone would bring in treats and there was a coffee maker too. Someone had put a scale on the floor and posted a food diary slash chart to track their intake. The amount of side I got for eating normal amounts of food led me to never again eat anything in front of coworkers still don't.