I can't help turning this into a headphone-jack argument: I was able to plug my phone in at the last hotel I stayed in because its ageing 30-pin dock also had

I can't help turning this into a headphone-jack argument: I was able to plug my phone in at the last hotel I stayed in because its ageing 30-pin dock also had an aux plug, which my modern phone still supported. It also seemed a lot better for my device security to not give some random active device direct access to my phone.