I put a windshield on my Street Rod. It detracts from the bike's appearance, yes, but the bike would not be comfortable to ride on the highway without it. Speeds above 70 mph become tiring without the windshield, while with it I can clip along at 90-100 mph painlessly (unless a Chippie is hiding on the side of the road). From where I live it is eighty miles of open desert to the next something with stores and street lights, so wind and weather protection is essential.
I live in a parallel universe but have a vacation home in reality.