FWIW the kids' bedroom didn't seem at all small to me - even by American standards. Actually, my mom often complained that the rooms here are ridiculously small and partitioned oddly. Where she grew up each room had a lot of functions, bedrooms that were used only for sleeping were considered wasted space if they were any larger than the actual bed itself. On the other hand, New England farmhoues had tiny bedrooms, many of them, but seperate, and that limited what you could do in them. It'd be hard to entertain guests in them, for example.
As far as food storage, yeah, the fridge is supposed to be small, but most people have some sort of pantry even if it's just a closet, but often a separate room (or nook). What I've seen commonly done is to put it in an unheated entranceway hall so it keeps cold there. But grocery stores are much closer to home, within walking distance, so getting a walk in the fresh air isn't inconvenient, whereas here I couldn't in good conscience (or affordability) take the car into town for a grocery run every day. But there's nothing like fresh baked bread and rolls, and there doesn't have to be as many preservatives in the foods either - people use them up immediately. I liked that system. Here, the only place I see local grocery stores, like in inner city neighborhoods or country markets, jack their prices WAY up because it's convenient. There things cost more in the supermarket because it was considered a luxury thing to go into the market and get things other than staples. Anyway, that was a few years ago, so I'm sure things have changed a bit, but that's how it was when I was little.