Never need to worry about charging them, soft replacable rubber cups fit into my asymmetrically-sized earholes, they're always there waiting in my bag on the rare occasion I want to use them, I am gonna be so sad when my 6s breaks and I have to replace it with either an Android phone or an iPhone with no audio jack, maybe I'll just get one of those lightning⟷audio adaptors and keep it on the earbuds forever.
I still do not see how the Airpods are an improvement in any way.