eli5: Why do most airlines still use 2-pin audio jacks for the in-flight entertainment systems on their planes?

Question

eli5: Why do most airlines still use 2-pin audio jacks for the in-flight entertainment systems on their planes?

In: 600

Answer 1

So you dont steal the two-pin headphones. If they have two pins, you’re not even going to think about stealing then because they dont work except for these planes.