>>56138967I prefer to imagine her older like 25 or something but character don't really have a set in stone age, even when they are given an age (often it's just a random number that has more to do with the target audience than the character).
So the real answer is she can be whatever age you think it fits,
>>56149144 and
>>56150208 are valid answers if you agree with them. I could explain my reasoning why I think she's older but it's just my own headcanon and personal preference.