I got this idea from Meester Tweester. Let's do a poll to see how old the mane six might be. There have been a few subtle clues, but let's see what everyone thinks.
What does everyone think the age range of the mane six is? Personally, I think in S1 Pinkie was 18 or 19, Rainbow Dash and Fluttershy were 19 or 20, and so on. But if it's been 3 years since S1, I think it might be Rainbow Dash and Pinkie are 18 while Fluttershy is 19.
What does everypony think?