The people who can’t accept help aren’t independent. They learned that needing things gave someone else the power to decide whether you got them.
Independence is usually described as a virtue, but watch closely how it forms in a person and you start to see something else underneath. The adults who refuse help, who insist on carrying everything alone, who treat a favor like a debt collector arriving at the door — most of them didn’t arrive at self-sufficiency through some clean philosophical choice. They learned, somewhere early, that asking for something handed another person the authority to grant it, withhold it, or make them pay for it later.