Ditching the headphone jack
It’s a solved issue: not only is a TRRS plug cheap, but it’s durable, small, and high-quality. It can support inexpensive headphones, and it can support the best headphones—all with one universal standard.
I did not know Apple took this huge a share of Bluetooth money:
Ever since Apple purchased a majority stake in Beats Audio for $3.2 billion in 2015, they’ve earned nearly half of all money spent buying Bluetooth headphones. When Apple kills headphone jacks on their products, they’re simultaneously trying to lock people into their own ecosystem, and increase demand for other high-margin products they peddle. On top of that, a smartphone without the headphone jack means Bluetooth headphones will be a major cash cow simply because the vast majority of listeners do not currently own Bluetooth headphones.