You beat me to it.Either way full or dipped is dangerous to oncoming traffic and shouldn't be allowed
The off-side headlight, dipped or full, is (or should be by law) focussed across the car towards the near-side margin. The near-side headlight is focussed straight down the road along the near-side margin. This is yet another reason why pedestrians, including those wheeling bicycles, push-chairs, prams, etc should keep to their off-side facing on-coming traffic in the absence of a foot-path.
Dumb-dumb Séan or Síle doesn't know this or doesn't care, and the Guards won't take action anyway, even if they're not on strike.