Children don't lose circulation because of the grip, they lose it from having their hand held up for long periods of time.. Leashes aren't a bad idea it is how they are used that can be a bad thing. And, I never said my child was lost, I said I lost my child.
My homemade child leash isn't a harness system, not that I think they are bad. My child and I are connected to each other's belt loops. So, maybe I should say my comments apply to being connected to my child not having my child harnessed to me. Perhaps my daughter doesn't get embarrassed because she isn't harnessed to me and walked on a leash. I don't believe in child humilation, child leashes are definatly not for every child. But, they can be a good thing for some children. However, a leash should not be used at expense of humiliating a child. Maybe discussing with a child if they walk they hold a hand, if they walk and don't hold a hand, they get "connected to a parent", if they don't want to be connected, they get the stroller. This way, the child can partake in the decision knowing what will happen if they don't listen. But, for me and my children, having them connected to me is comforting to both my daughter and I. I will continue to do so until she is old enough to handle being in the crowd. If she shares with me that she is humiliated, than we will think of another solution together.