There is another aspect to it though: With a low-fat mentality you can eat anything you like since everything is "low-fat" these days. Low carb on the other hand requires conscious strategic thinking & planning - the average processed product isn't geared towards it. I wonder whether some of the health benefit comes from that: The second I'm tracking & analysing things I automatically eat healthier and better as a result regardless of what exactly I'm tracking.
Really? I do very low-carb precisely because it's so very easy. I have heaps of vegetables and lean-meat and that fills me up and gives me all the energy I need. I almost can't see where I'd fit carbs in now. (I do eat more carbs when I'm doing something particularly arduous though).
> Many products for the breakfast are rich in carbs.
Well you can eat whatever you want for breakfast. You don't need 'breakfast food' in particular. I often have steamed fish for breakfast.
> Practically all products in small stores (such as newsstand)
Well yes, things are going to wrong if you are planning a diet around shopping at a newsstand. I'd say obviously you shouldn't do that no matter what your diet, but I suppose people have different lives to fit diets around - I work from home so it's probably easier for me.
Well, it's not easy to do it "cheap," in most people's mind of what "cheap" food is - the little muffins at star bucks, or mcdonalds, the free cereal at work (when there are no high-protein, low-carb options).
So it's not "easy" because you're no longer even capable of eating what 80% of the people you know are. If you had even half of one of the muffins at work, you'd be thrown out of ketosis and you'd need half the week getting your diet back on track.
That being said, if you already have a strong habit of cooking and eating the majority of your meals instead of eating out or eating the free food at work, a low carb diet is a remarkably "easy" way to lose weight, because it doesn't come with that shitty feeling of grumpy hunger that (I at least) one gets from low-calorie dieting.
Its also pretty liberating to get off the carbs to the point that you don't need those carb-rich products. The stabilization of blood sugar on low carb makes it easy to just skip a meal or two when needed - its really not a big deal.