For the 22398th time, it's not about CONTROLLING them, it's about keeping them SAFE! If you think it's horrible to keep a kid safe then I don't know what to tell you.
And you know what? Most parents of young children who are in their 20's or 30's right now, and 20-30 years ago life was a lot safer for little kids. So your little analogy is pointless.
My sister and I were some of the best behaved children you'll ever meet. My parents were incredible in the area of disciplining us. But one time when my sister was 3-4 years old she got lost in the Magic Kingdom (in toontown actually). I still remember how horrifying it was for my parents when they were running around frantically trying to find her. After that situation my sister wore a "leash" whenever we were in busy places like that, not because my parents had trouble CONTROLLING us, but because they never wanted to be in that scary situation again of losing their child.
I'm still disgusted by all the judgements being passed in this thread. And the pathetic thing is most of you have NO IDEA what parenting is all about and you have NO IDEA how valueable our children are to us and how scary it is to be a parent in this day and age. You have NO RIGHT to judge if you don't have children of your own.
If you had a thousand dollars in your possession would you just set it on a bench next to you and assume that as long as you are watching it carefully it will be ok sitting there? No, because that would be too risky. In the blink of your eye someone could come up and snatch that thousand dollars right from under your nose. Well I'll tell you what, my children are worth more than any amount of money to me, and if I'm not willing to take the risk of someone stealing my money by not keeping it secured to me, then I SURELY am not willing to take the risk of having my children being taken from me. So if I am ever in the situation where I need to use the harness, you betcha I will use it. And for all you people who think badly of the harnesses, that just proves you have no idea what it means to VALUE a child.