I have heard and opinion about UBER which made me worried.
By recruiting part-time drivers who use their own cars, uber bypasses many regulations which allow it to be price competitive. Many of these regulations have been put in place to protect workers. This includes workers compensation, superannuation, health and safety obligations, paid leave, sick leave, training etc. If uber example will spread, there will be a large class of people working for minimum wage or less with none of these benefits.