My kids fidget absentmindedly with the charger cords while they use their phones, so at this point we buy them in packs of ten off Amazon.

I own more than 1, but they all get used regularly. There's one on my nightstand, one in my car, and one in the office. I can swap them around, but that doesn't solve the problem - at the time I'm ready to buy a new phone, one of them is worn out.

Have you considered wireless charging? It seems like you’d save money over buying more cables, in the long run.

Maybe, but wireless is new (my iPhone 7 doesn't have it), so it hasn't come up before now.

But, that just means I have to buy 2 new wall warts (need the high power one, IIRC), still need 1 new cable (unless it's included with he wireless pad), and 2 wireless pads.

And it's not an option in the car, because CarPlay requires a cable (in 90% of cars, AFAIK only BMW has implemented wireless CarPlay).

I have 5 in my drawer and I don't even have an iPhone.