It is my dream that humanity can one day become a multi species civilization. As someone who feels like a stranger on this planet, it would be nice to have some company in that regard.
But aside from the difficulties of making sure all those species are comfortable around humans in our environment, and shutting up those, “Suffer not the Xenos to live” nut jobs, one trial that might face such a civilization is increased stratification based on special traits.
Imagine a species from a volcanicly active world with incredible heat resistant skin and lungs used to filtering out all kinds of toxic gases. You now have someone who can walk through a burning building without protective gear and not mind. The perfect fire fighter.
Then there is the classical big scaly warriors with bullet proof skin and infra-red vision that would make a perfect frontline soldier.
Then there is also the smaller honorable warrior code species with eidetic memories that make the ultimate law enforcers.
A more tech savvy species might design our computers. Or the math wiz species that thanks to accurate stock predictions become top of the Forbes 500 List. Or more medically minded species becoming doctors. Or shapeshifters practically running Hollywood.
Now I’m not trying scream “the E.T.s are stealing our jobs!” That is not what this is about. I am just wondering if this might lead to the removal of social mobility that makes our society great in the first place. Because if everyone is doing something that gives them joy and makes the galaxy a better place, that’s the whole point, and no one wants it ruined by some jerk saying, “Sorry, but you’re just not the right species for this job.”
So my question is: Should we be worried about a caste system based on species traits in a multi-species society?