“But the perp in the sketch looks much older.” Sketch being the operative and non objective rendering. Photographs most always are better.
Photographs can be tricky. The camera should have a min 105 MM lens to see proper proportions and facial structure. Most folks use electronic cameras (cellphones, digital cameras, etc) which have way too wide angle a lens for proper portraits. These cameras exaggerate the width of the nose, size of the cheeks and lips when the pic is taken to fill the frame.