Humans have historically spent much effort building trails and roads to improve the speed and efficiency of transportation. The time required to create relatively level paths cleared of entangling obstacles such as brush, limbs & boulders pays many fold returns in shorter travel times. Compare carrying groceries to your house every day on a smooth level sidewalk to a trip on uneven ground through a field of fallen limbs. The advantage is obvious.
It is not surprising…
Source: Living With Insects Blog