There should be some form of certification by an authority that states a cyclist is competent enough to be riding on a main thoroughfare and more importantly, understanding the rules of the roads and the rights of vehicles' movements.
saw a young sinkie charbor all decked out in sexpensive cyclist attire displaying all kinds of high end brand names, stylish helmet, top of the line shoes with cleats, matching gloves, iphone holder and iphone, spy cams front and rear, intimidating eye shades. as she approached a busy junction she struggled to stay on her $6.9k carbon bike as her legs were too short and seat was too high for one feet to rest on curb. she wobbled and almost peng sang, but managed to slip her butt off the seat forward and onto the frame, with such force that her perineum must have hurt. with camel toe on frame her legs were dangling on both ends taking turns to tiptoe like a seesaw. what a sight! got close to her at the light and asked if she was ok. by the look of her scowl could tell she was insulted. when light turned green, i took off but could see her struggling to get bike in motion as i looked back. it would be safer for her to walk bike home.