You've somehow avoided USB-C cables? That's confusing to me since I have an iPhone and other Apple devices. My phone uses lighting but my Beats earbuds, My Macbook Pro, and my iPad pro use USB-C for charging. Plus plenty of other non-Apple devices.
Yes, I suppose if you want to charge your phone in a dozen locations, and you want a separate cable for every location, that will be what you need to do. It doesn't seem like a major hardship to me, having lived through a few connector changes, like the 30-pin to lightning switch, but I suppose it may be more of an issue for others.
It's just back to my point. This change will cause me to throw away a significant amount of cables (some over 5 years old). That's a decent amount of waste.
Really? I consider myself pretty economical, but I throw out much more than a few lightning cables worth of waste in a given week (probably more on any day even). Would they even really be noticeable in your trash can?