Here's something that I haven't seen mentioned

An age slider, we have muscle definition sliders, so why not an age slider too, since it would work in a similar manner to the aforementioned muscle slider.

It does get a bit bothersome when just about every character looks to be of questionable age, especially with female Miqote and Au Ra, hard to tell if they're legal or not.

Sadly I don't see it happening anytime soon, since SE wouldn't want to ruin their cute schoolgirl cats.