This is one reason working in an office can be a disaster if you're someone who would "roam around for nibbles". In every place I've worked there has been a vending machine or otherwise easily accessible junk/sugar dispenser. In my eyes these are no different from having a cigarette machine or a gambling machine or something, but not everyone sees it that way.

In my house there is no ready-to-eat food at all. I'm not just going to go to the kitchen and cook a potato when I feel a bit peckish.

But this seems difficult for many people. Personally I find hunger to be a normal part of every single day. I don't fear it or feel the need to squash it the moment it arises. I also don't feel any discomfort when I'm not surrounded by ready-to-eat food at all times. But many people do seem to feel a constant need to have food available and find it deeply uncomfortable if the next meal doesn't seem readily available.

If you're good with handling hunger - that's great!

A lot of people get hypoglycemic (ie, irritable) when low on blood sugar, so for them, snacking is an acceptable evil (esp. if only healthier snacks are stocked).

For me, I find whipping up some dill/garlic/mayo dip + cut carrots, or celery + good PB a meaningful snack.

My guideline is to try to find a good carb/fiber ratio (pref: 5:1), and avoid added sugars.

People without diabetes don't get hypoglycaemia. I believe you can train yourself to expect food at certain times. I eat two meals a day and only get irritable (hangry) around those times.

But anyway, what you've written is basically my point. If you want/need to snack then unless you think ahead and make healthy snacks available then it's going to sugar/junk that you find in the socially acceptable junk machine.

I have a BMI of 20 so I'm not trying to avoid calories. However I do try to avoid sugar, UPFs, and so on, because what benefit would there be in putting that crap in your body.