When (if ever) Should This Have Taken Place?

There's a story that I still haven't been able to make work in ten years or so of mulling around, but it occurred to me a week or so ago that there's a scene in it that might be able to work as a standalone.

The premise there is that a young teen geek girl, about 13 -- the kind who wins science club competitions -- has a single mother who's a freelance designer, so the girl has access to a mini-mainframe computer, color screen and photo-quality printing capability, and 3D CAD software.

She proceeds to work with the CAD animation program, the age-progression software used for kidnapped kids on milk cartons, full-body images from various sources (mostly scanned newspaper and catalog ads) and something resembling the instant-makeover software that was available for PCs back then, and comes up with something that can project what she and her female friends are likely to look like over the next several years: as high school cheerleaders and athletes, in swimsuits, a sweet 16 party, senior prom night, in bridal gowns. She's only worked out the body progression for girls, though, and there's this photo of her best friend's ten-year old brother wearing a Speedo-type swimsuit at a city meet that she can't resist processing...

Anyway, does this make any real-world technological sense, and if so, where on, say, a mid-80s to mid-90s continuum would it fit?

Best, Eric