I'd buy an X_E2s or X-E2 (even a used one) over the XT2 or even the XT10 if I were a "newbie"
then you have money left over for lenses.
As for "growing into a camera"..You could spend the next 5 years growing into an X-E1 or an X100s
and graduate to the XT5, by then you'll be tired of all the gear and carrying stuff around and use your phone
After years of GAS (gear acquisition syndrome I sold my Canon's, Sony's, Panasonics and all I have is the X-E2 which I LOVE, and a X100 that I am selling to finance a new lens. (classified here in classifieds).
Im a pro and on jobs I rent a Canon if I need one but get by with the X-E2 most of the time.
The X-E2 with a 35mm f2 lens or the new 23mm f2 lens is also a small package you can carry around. you might not want to carry an XT1 or 2 around if that's what you do.
X-E2 over XT10 because the viewfinder is larger and over on the side so you're not smashing your face/ nose on the LCD all the time.
Good luck
