Leashes

Dad Getting Yelled at by Internet for Using This with Child [PHOTO]
Dad Getting Yelled at by Internet for Using This with Child [PHOTO]
Dad Getting Yelled at by Internet for Using This with Child [PHOTO]
I feel like I have to start this off by saying that I'm not a parent. I have personally only have a dog though there are a lot of children in my family. My Mom used this when I was a kid and I don't feel like it was a big deal. What am I missing?