Cycling shorts are made of a form-fitting, light-weight elastic material (Lycra) that maximizes comfort and support and wicks moisture away from the body. They are form fitting and stretch in every direction to provide both comfort and freedom of movement. The surface is slick in texture to provide the least resistance to wind as possible.
I never used to wear those spandex shorts and shirts and I was able to ride my bicycle just fine. If they have some padding to negate testicle destruction I can see the point. Otherwise wear shorts and t-Shirts or be joked at like those midget soccer players
But all in all I don’t mind sharing the road with cyclists. KNOCK yourselves out!!! I see groups cycling and having a good time.