Japan and "the west" (broadly speaking) do have different norms about what counts as continuity, but there is a lot of ship-of-Theseus kind of stuff that goes o

Japan and "the west" (broadly speaking) do have different norms about what counts as continuity, but there is a lot of ship-of-Theseus kind of stuff that goes on in the west too. Two categories come to mind offhand. One, there have been restoration projects on ancient Greek and Roman buildings that have involved completely dismantling them, stone by stone, and then reconstructing them from the original stones. And two, it is fairly common for independent shops and restaurants to advertise things such as, "[City's] oldest restaurant, serving you since 1833", but since 1833, the restaurant has been sold three times to new owners, changed location twice, and completely overhauled its menu many times.