mini bikes/mopeds

I am going to get on my soap box just for a moment and complain about mini bikes or mopeds. What in the world is the state of South Carolina thinking to be allowing these things to be on our roads and be legal like a real form of transportation. Last week, in a matter of 24 hours I nearly got in two accidents because of these things! They cannot keep up with the flow of traffic and therefore people nearly hit them when driving on the road. Why are these things even allowed on the road? Maybe they are not, the owners just act as if they are. I don't know...but if I had my choice they would be outlawed!