What other kinds of things need a German tag? All of my father's known relatives are German, and the further back they go, they are spread into other relatively near parts of Europe. The historical place names are very different from the ones now in common parlance. If I find a record in someone's tree, I would also not presently know if that place name is accurate or if one has changed. Example: Oberoewischeim and Unteroewischeim are not on any maps. Perhaps they are villages too small and now obliterated; perhaps they're districts of a larger town (Karlsruhe), or perhaps renamed.
I am feeling like a first grader in my knowledge of the older principalities (& regions), which one needs to suggest as locations for historical records (on anc.com or other places).
I've been amazed to find some relatives fairly far afield. Lack of transportation means didn't stop them from moving. My gggma Rosa (Rosalin) Schmid Herrmann Baer after age 73 traveled to the US (CT) briefly, then back to Baden-Baden, and then to Offenberg, where she might have died. Her son August Karl Baer had found his way to a district of Hamburg where he died in 1942 (no place of birth at this moment).