Given that different localities use different
date formats, and given that in ##/##/##, we use little heuristics to figure out which end's up, going to a
one digit year number might, at first-blush, seem to be confusing, but (a) it's fairly safe, and (b), for roughtly two-thirds the time,
MM/DD and
DD/MM are indistinguishable anyway. Besides, we don't have day zero or month zero anyway.
I don't know if it's an imaginary problem or a real problem, but I remember losing some bandwidth to it a few years back.