Key legal question
Whether the cantonal court committed arbitrariness in assessing the evidence about slope marking, the visible traverse, and witness Z.'s testimony
Extracted holding
The cantonal court did not act arbitrarily; its evidence assessment was plausible and within its margin of appreciation.
Extracted reasoning
The photographs allowed the inference of left-side marking, the father’s use of the traverse showed it was clearly visible, and the testimony of Z. was considered but not decisive because its basis was unclear.