I used diesel in an MSR X-GK years ago, and I experimented with kerosene a few times. If you're in a third world country where fuel is hard to find, then the option of using diesel or kerosene is nice, but I wouldn't use either in a stove unless I had to. Lots of people carry white gas on bicycle tours safely, what are you worried about? Keep the bottle closed tightly, keep it away from open flames unless you're lighting the stove, and you'll be fine.