I think it's disgusting when anyone eats in the grocery store. I remember going shopping with another family for a party years back, their kid just started grazing. I was mortified and they acted like this was completely normal! My face was clearly showing signs of disgust so they reassured me they'd be paying for the empty container. Sometimes I wonder what happened that makes us think we have to eat at every second we feel the slightest ping of hunger. Other countries don't do this walking and eating thing that Americans are so obsessed with.