Not to be rude, but, um-
spanishwasdevelopedhundredsofyearsagoandenbieseitherdidntexistordidntknowwhattobereferredtoasandweretoscaredtocomeout-

Our Spanish teacher said that we could just end words with e for gender neutrality. Eg instead of alto/alta for tall, alte would be a gender neutral option

wdym?

i honestly don't know what idiosyncrasies means