An attempt (naive) to make a growing character. Details here.
Well, you can't say it's elegantly solved... but it'll probably do for a prototype.
shape_transform_size.mp4 750 KB
Made this way: when growing up, the body is scaled, only the proportions of the head (and a bit of the neck) are changed, and the young facial features (the shape) are applied. The body doesn't change, except for the prominent parts in women.
A child's adult body is not good, of course,but I don't see any other way yet.