I love Rose Tyler because every time she encountered a new alien life form or a fellow human that seemed to be mistreated in some way she went “HELLO DO THEY TREAT YOU WELL, HOW MUCH DO THEY PAY YOU, ARE YOUR BASIC RIGHTS BEING VIOLATED, DID YOU KNOW YOU ARE ENTITLED TO AN EIGHT HOUR SHIFT AND THREE WEEKS OF VACATION ALSO YOU COULD JOIN A UNION, MY NAME IS ROSE I’M HERE TO HELP” and that was just so rad of her
One reason why the first three companions of NuWho are so important is because they’re of the working class (Rose and Donna) or have lived experience (Martha) that makes them understand that meeting new life forms isn’t just a walk through a petting zoo. These life forms aren’t just amusements.