The Greeks were not concerned with the sex, gender or age of who they were attracted to? Really? Surely that's at best misleading while the ancient Greeks permitted (with, at times, misgivings, cf Plato a wider variety of sexual expression than would be considered acceptable to later ages, they most certainly WERE concerned with sex, gender, age. E.g. adult men did not marry young boys, though they might have a relationship involving intercourse. but didn't do that with other adult men.