penelope wrote: or not snacking at all, even better
I think you need to learn some things about babies/small childrens eating patterns if you really hold this view. Adults don't need snacks, but children do. also, if you think babies/toddlers should watch videos while eating, you do lack some basic skills.
If seeing a box of snacks lead to kids wanting more stuff in boxes, it's because what you as a parent get them used to. To give babies/toddlers a variety of foods, including boxed/canned etc foods is not damaging in any way. What if the kids see you take veggies/fruit out of the fridge and freezer all the time, will that lead to them only wanting ice cream and majo for snack later (since that also comes from the fridge/freezer)? It's like common sense have totally gotten lost in some of these what-to-not-feed-your-kids- frenzies today. One snack/food item should not exclude the others.
Btw, why would you choose a bit of bread over a handful of Cheerios? Is bread so much better for you, and Cheerios in comparison so bad, you want to exclude it all together?
I have no idea from where you get some snacks (Cheerios) are to be eaten together with certain activities, i e watching videos. That's patterns you as parents set for your kids. Breakfast cereals like Cheerios are normally eaten at the kitchen table, in a bowl together with milk for breakfast. And for babies/toddlers they are a great snack they can pick up (eating them dry) with their fingers.