i can see that people have very strong views on this...but i have to admit that 99% of the time DD will have something when we go around. i always pack snacks, but normally by the time we are doing the food shop there isnt much left in the house to take as a snack and i will say before we leave ''il have to grab something while we go round'' sometimes a roll from the bakery out side the shops or a sushie roll, but if she doesnt want those, something fromthe supermarket gets opened.
i would not give her something that has to be weighed, only things that can be taken out of a packet and the code still scanned. squeezie yoghurt. cheese and crackers. but never the treats we get, like little chocies or cakes/biscuits. not that that changes anything, its still eating something that isnt yet yours to eat...but i still do it.
dh isnt keenon doing this, but if shes hungry...and bored...and i dont have something in my bag for her, opening something sure beats a giant melt down. maybe it is lazy or immoral....but i still do it.
i always explain to the check out person that i opened it for dd and ive NEVER had one person tellme i shouldnt do it!