A research institute conducted safety collision experiments on three brands of old-generation scooters. The experiments showed that all three brands of scooters could not protect the driver in the event of a traffic accident. The agency, therefore, believed that the old-generation scooters were very dangerous and the government Scooters should be banned from driving on the road to guide older people to drive ordinary cars. Which of the following options does not support the above assertion? ['The price of scooters is generally lower than ordinary cars.', 'The market share of these three brands of scooters is extremely high.', 'Elderly people using scooters are generally qualified to drive cars.', 'Safety is the primary factor in determining whether a scooter can go on the road.']