I don’t disagree that they should be recycled (albeit I’d expect a phone to last 3-5 years), but historically all but the best phone chargers have proven to be

I don’t disagree that they should be recycled (albeit I’d expect a phone to last 3-5 years), but historically all but the best phone chargers have proven to be wholly unsuitable for powering Pi’s. I’m not convinced USB C is poised to change that since charging doesn’t require a continuous, stable supply whereas running a power-hungry CPU does. Ironically most cheap, captive cable phone chargers are exactly the sort of thing that will work in the Pi 4. For varying values of “work.”