

someone who is often listening to music with their phone and wired headphones, or even just when arriving at home from work, is going to use both the charger and the jack at the same time frequently.
another scenario is if the person uses their phone as the microphone for their PC.
you can argue that both must be rare because you have never seen them done, that’s my exact opinion about wireless charging
that’s the same thinking that those apply who say people don’t need jack connectors, mind you