As the foster mother of a little autistic boy who wanders off, I’m fully in support of leashing your younger kids when you go out to places where your child might become separated for you. Here’s a really cool bat-shaped leash for walking your toddler and keeping them safely nearby. Bat wings decorate this soft padded plush backpack-style harness.
Also available on Amazon.
Just be sure to have a snappy retort for a few unintelligent mundanes who are sure to criticize your use of a leash at all, on top of the inevitable “Why are you and your kid wearing so much black?” question.