I totally support child "leashes"

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...as well as walking bracelets.
My child is still in my belly.  I've babysat, and been a nanny for over 10 years and I've been a preschool teacher. I'm also constantly around my younger nieces and nephews.  I've seen my share of child leashes and would feel no shame using one in appropriate situations when my daughter is of age.
Just to clarrify: if you choose not to use one for your children. All the more power for you and that's great but there is a lot or shaming for parents who choose to use one and that what bothers me.  Please don't be someone who shames or judges the parents who wants to take that extra step to give her that peace of mind and keep her babies safe.  
Some children are fast, some are unpredictabl, some have special needs.  And even if my child would know how to stay near me and I can trust her, I can't trust the adults I'm around, espically in a big crowd.  These are some of the arguments be heard against these divorces that I cannot understand.  
"Teach them to hold your hand".  
What if you are like me, tall.  To hold my hand for an extended period of time would mean that any child would have one arm always above her head.  And quite often in need the use of two hands.  Plus,  they get to use both their hands as well to touch, explore, clap or swing freely.  You know.... movement that's good for kids.  
" Use a stroller" 
Strollers are bulky, hot and refrain the child from exploring their environment.  It's also annoying to always lug around.  In a hot climate that relies on public transport strollers are a nightmare.  If my child can walk and wants to walk, I'd prefer they do so.  
" It's like a dog". I put a leash on my dog to keep him safe.  I also give my  dog vaccinations and restrain him in a moving vehicle.  To keep himself, myself, and those around him safe.  I would do all those things from my child for the same reasons.  
"I've never needed that with my kid, theybwere taught to stay close."  All the more powertonyou but my kid wouldn't be your kid and that doesn't make me any less or more of a parent.  In the world of judgement, mommy wars and mommy guilt and shame,  we shouldn't be putting down a mother for making what she believes is the safer choice for her child.  
What is NOT ok.  Tonuse as a replacement for lazy parenting.  You must still always watch your child and be vigilant.  Also hand holding and walking by parents is a good skill to learn and should be practiced in safe places like a park or a mall.  
Overall i believe these devices give children more independence then holding hands or strollers.   They keep them safe from themselves and not so kind adults.  They have the freedom to skip and run a little ahead.