When I stand on a skateboard, both feet on, I face to the left. My right foot is in front, which I steer with while pushing myself with my left foot.

Missing is the assumption that "direction of travel" is forwards.

If I were to skateboard, I would face port. When I'm coming to a halt on a bicycle I prefer keeping my right foot on the pedal and landing on my left foot, so I believe I'd have the same preference when skateboarding.

A goofy skater’s head faces right, over their shoulder, and body faces left, relative to their forward movement.

Orientations are so confusing, I thought the parent was describing regular too