Walking harness/"leash"

[5 Little Monkeys]

In the past week or so I've seen these come up for discussion on other forums and Facebook groups. I'm wondering what your thoughts are on them?

Personally, I see them no different than a stroller, wagon or shopping cart. They are all a form of restraint and used for convenience and safety. I use them when we go for a leisure walk and I want the littles to get exercise or if we are going somewhere busy and the risk of losing a child is high risk. They either have to hold my hand, their partners hand or the cart/wagon/stroller if I have one. I think they can be used to teach boundaries, rules and how to walk nice but they have the added bonus of extra safety with them and they offer the child some freedom and independence to explore