system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do faces get wider as they age?

Looking at my wedding photos from 8 years ago and then happening across a celebrities then and now collage, I noticed that many faces “widened” as they aged. 

I understand collagen loses its elasticity as time goes onbut wouldn’t that cause droop instead of expansion?
gpt
Most people accumulate fat not only overall but also in their faces as they age.  So even if someone is the same weight as they were from 10 years before, they will often tend to have more fat accumulated in their cheeks and jowls, which adds to the visual perception of a wider face.