When I was a student, I had an eternal problem. I would feel very hungry in the class just before lunch. I would have eaten a heavy breakfast, but as far as I was concerned, the lunch break was always too far away. In engineering college, we had a mid-morning mini-break, and I would have a quick snack packed for that break. So I was okay. But in school and pre-university , it was very bad.
The main problem was that I cannot concentrate when I am hungry. There was absolutely no use sitting in class when I was hungry. But eating during class was totally taboo. Something that didn't even cross my mind. So all that I did was think about my lunch box and look at my watch. What a waste of time.
In pre-university, we were slightly rebellious, so I would eat my lunch during class without being found out. My stomach would stop growling temporarily and I could concentrate.
When my sis PeeVee went to class in the US in the beginning, she took a long time to get used to people eating in class. She watched, horrified as they sauntered in with a sandwich and a drink and ate as the lectures progressed. She nearly fainted when the professors themselves walked in with food and proceeded to eat as they taught. She got used to it very quickly, and now she does it too.
It make so much sense. There is no way some people like us can concentrate on an empty stomach. So why make such a fuss if we can just have a quick snack during class? I wish the trend changes here too. At least the future generations can benefit!