From the (old) cult write up, a non Aldryami can worship Aldrya.
What are the draw backs? Does he receive a elf bow? Can he do all what aldryami do?
Not to get overly technical and anthro-wanky, but we do have some interesting cosmologies of non-literate people in the RW. Eduardos Viveiro de Castro, a Brazilian social anthropologist specializing in Amazonian peoples, proposed a concept he called "Perspectivism" that is almost uncannily similar to the Gloranthan concept of common descent from the man rune/grandfather mortal, albeit with some major differences.
He argued that among many Amazonian groups, society and "humanity" (or personhoo