Original sentence: Pony rides generate some controversy, as the quality of vendors varies tremendously, from highly contientious individuals who take very good care of their ponies, to those who are not as caring or considerate.They are sometimes seen at traveling carnivals, or at children's private parties where small children can take short rides on ponies that are both saddled and hitched to an unmotorized pony wheel, or, in some cases a small device akin to a hot walker that leads six to eight ponies at a time
Edited sentence: They are sometimes seen at traveling carnivals, where small children can take short rides on ponies that are both saddled and hitched to a device akin to a hot walker that leads six to eight ponies at a time.This practice is controversial and is considered animal cruelty in some circles