Why do you have to buy the same $20 headphones three times a year?
It is the "Amazon Churn." You buy a pair of cute, plastic headphones in September. By October, the hinge has snapped. By November, the wire fraying at the jack destroys the sound in one ear. By December, the ear pads are peeling and smell like gym socks.
It is not your child’s fault.
The industry is suffering from the "Hard-Plastic Fallacy." They are trying to clamp rigid, brittle ABS plastic onto a growing, energetic child’s head. This creates "Compression Fatigue" (pain) for the child and "Structural Failure" (breakage) for the device. You are not buying technology; you are buying future landfill.