This wouldn’t be that unprecedented. For example, Estonians didn’t really have last names until the start of the 19th century. A law was passed around the time serfdom was abolished, and suddenly Estonians needed last names. The nobility were either German or in some cases Swedish or Russia, and Estonians were just “those serf people” (Indeed, at the end of the 19th century there was a debate whether Estonians were actually an ethnicity or just a class with its own language, roughly). And so, in 1834 Estonians in the northern part of the country had to choose new names. Many are actually named for the farms they were associated with (see, serfdom), so those are kind of serf names. I believe Czechs also went through a spell of having to choose last names. Icelanders still don’t use last names.
This is actually a pretty darn cool idea.
