They are also known as a place to buy huge sodas, tobacco, and energy drinks, but many other convenience stores also provide those.
https://www.japantimes.co.jp/news/2022/06/24/business/seven-...
The US contracts might be more relaxed or the holding company might not have enough control due to the sheer size of the US market. In Japan, most stores get deliveries more than twice a day, have inspectors show up unannounced, need to make daily reports in some cases, etc. Not much room for leeway.
In Asia, 7-11, Circle K, GS25, etc are all "upscale"ish outside of JP/SK/TW.
They can't compete at the price point that a local bodega or street vendor in Dongguan, Diliman, or Da Lat so they segment themselves as slightly more upscale. Sort of like how Target differentiates itself from Walgreens and CVS.
The whole point is that because they're Japanese/Korean/Taiwanese they are much more "luxury" than a local brand.
I was wondering what this said about the US customer. But it sounds like the US operation was just not as well run and needs to catch up.
[1] Good strategy, Bad Strategy, 2012