Quick question: how old is too old to wear overalls? What about if I throw a blazer over it? Is it then business casual? Asking for a friend.

Wearing

Overalls by Gap, $40.
Vans slip ons, $50
Acne sweater, $390
J. Crew blazer from ages ago, basically priceless now.
Canvas tote bag from a Beck concert, $20
Under-eye bags from waking up at 5am Paris time to go to Versailles, $FREE