Look and the following two pictures. The first one is for a merry-go-round ride. The second photo is for the Ferris wheel.
Do you notice anything weird? I was astonished that the merry-go-round required safety belts, but the Ferris wheel didn't. Both rides took my 5 and 7 year old children unsupervised. Don't get me wrong, when my children were under 2 1/2 years of age, someone older stood near them to keep them from falling off the horse. It was thrilling for the children when they were old enough to hang on by themselves and enjoy the ride. They perceived a risk on their first "solo" merry-go-ride trip. The thrill is gone.