I'M SORRY FOR BEING MORBID GUYS
this is just what i saw when i saw the finale.
Alicorns live for 1000's of years
the others are normal hard working ponys.
the price of being a princess would be watching her friends age while she stays beautiful
Also this was like a 20 minute doodle sorry for any obvious errors
This is MY opinion. i'm not saying this is Canon.