If I remember correctly, the very first android phone had only a mini USB port and required a dongle to use a 3.5mm audio port. This was almost a decade ago, and this struck me as a terrible design choice. The latest Moto phone does the same (with USB C instead mini USB).

If manufacturers are going to phase out barrel connectors for audio, they should do two things:

1) Use a single universal port standard, like USB Type C

2) Provide TWO of these ports. I want to charge my phone while playing music.

I know its unlikely, but I would rather Apple switch from lightening to USB Type C if they are going to abandon the 3.5mm port.