Technically, until the age of 18, the parents are deemed to control what children do and are 100% liable for their mistakes. So, in a sense, yes, parents do own their children, but I wouldn't put the chauvinistic spin on it that you are implying. You're adding something to the discussion that isn't necessary.
Actually thats in America. In Europe its legal to have sex at the ages 14-18 depending on the country you live in.