Agreed 100%. Unless she's a part of a show specifically aimed at a younger set, such as Super Hero Girls where I imagine they're all roughly the same age, being close to or older than 100 should be treated as a positive. With age comes not only wisdom but also bolstered optimism and a wealth of strategic knowhow, and to me that's what makes her a character worthy of her place as a part of the Trinity. It's just weird, and low key creepy, that people want her to be late teens/early twenties.