At a casting after I revealed my ages I was once asked by the casting director,
" how old are hand models usually."
I figured they would be young, and said my age but recently at a modeling job I met another hand model and she was around 37 years old. It was inspiring.
Having soft suppy skin and an even skin tone and the "want" to use what you have to model can help you book work as a model through out the ages.
Shorter models can find modeling opportunities through hand modeling and should consider it. Especially if you are wondering how you can get an agent and book legit modeling work with great brands.