razors are much harder to work with. really not a DIY thing, but clippers are
the irrritations that clippers can cause are pretty mild and once you go full no-comb nazi punk haircut you can really massage your scalp, that can often clear up scalp problems.
but i like long hair... i'm done with the buzz cut, i started doing it partly because i was greying but pff whatever. my front hair is more grey, more like silver, the back part of my head is still quite brown mostly.