Wire's and airplanes don't mix. A fact that was discovered early on by several power line fried experimental fliers.
Once WWI started, the wires were blown to smithereens within 25 miles of either side of the front, so pilots trained for the war became used to not having to deal with them. Pilots in WWI were called "Three Week Wonders" because that was their average lifespan after heading to their units behind the front. Wires were the least of their worries, and it came back to haunt them after the war.
Lothar Von Richthofen, brother of Manfred, the "Red Baron" survived the war but was killed a couple of years later when he clipped a power line. There were a number of WWI aces that survived four years as flying targets only to fall victim to power and phone lines in short order as the European grid was rebuilt. Wires up until then weren't really a thing that had entered their minds as a danger.