Local geriatric anthropologist David Enos just published some interesting new findings:
Older people are invested in the actual physical details of their change in a way that we are not. They like the bill to be exceptionally crisp if possible. No visible creases. Fresh from the US Mint, a bank vault, a villain’s loot. If it is crisp, their eyes light up and they admire its crispness. That bill is probably going into someone’s birthday card. They are also made anxious by any bill smaller than a five.