Oh yeah point of reference of the mane six fluttershy is the oldest at 26 she was a year older then pinkie pie dash and aj how are 25 i think rarity may be shys age at 26 as well twilight seems younger then the others so i think shes 23 to 24 her brother in late 20s around 28 to 29 same for big mac. AS for spike as a baby dragon hes only around 17 to 18 years old is my guess 15 at the youngest that is based on his height and he dose not have wings yet. (ie the older teen dragons as he called them were in there late 30s to early 40s) as for alicorns there ages can be well i sa pic a number and ad a at lest one zero to it lol