Children learn dog safety best as short rules they can say back to you, practiced at home long before a real greeting happens on the sidewalk. Keep the approach lessons and the gate rule separate, because they protect against different risks: one prevents a frightened or startled dog from snapping, and the other prevents the dog from ever reaching the street.
The Four Approach Lessons
Lesson one is ask the owner first, every time, even with a dog the child already knows, and accept no as a complete answer with no arguing. Lesson two is let the dog sniff a still hand: the child stands sideways, holds one hand low and still, and waits while the dog decides whether to come closer, because a dog who steps away has given an answer too. Lesson three covers touch itself: stroke the chest or side with slow, gentle strokes, never reach over the head, never grab ears, tail, or collar, and never hug around the neck, since a hug traps a dog and puts a child's face exactly where a startled snap lands. Lesson four is leave a resting or eating dog alone, and the same respect applies to a dog chewing a toy, sleeping in a crate, or walking away from the game. A dog who moves off is asking for space in the only polite way available.
Practice That Makes the Rules Stick
Turn each lesson into a game with a stuffed dog first, then with your own calm dog for very short sessions. Have children rehearse the exact words, the still hand, and the sideways stance, and praise the waiting itself, because patience is the skill that keeps them safe with unfamiliar dogs later. Teach them to read the obvious signals as part of the game: a wagging tail with a loose, wiggly body usually invites a hello, while a stiff body, a tucked tail, hard staring, growling, or repeated lip licking means step back and tell an adult. Children should also know what never to do around any dog: no running up waving arms, no screaming games beside a resting dog, no riding, climbing, or dressing games, and no taking food or toys from a dog's mouth. Calm and quiet is the whole technique, and it can be practiced until it feels ordinary.
Gates Are an Adults-Only Job
State the gate rule as a job description rather than a warning: gates are an adults-only job, and children never open an outside gate alone, not even a little way, not even for a second. Teach the latch rule alongside it: a child who finds a gate open or a latch loose does not fix it, squeeze through it, or hold it for the dog, but steps back and fetches an adult at once. Practice the household sequence until it is boring: an adult holds the dog or closes the inner door, checks the yard, opens the gate, and confirms the latch has clicked shut before the dog is released again. Extend the same discipline to front doors during deliveries and to car doors on outings, since most escapes happen in those few distracted seconds. Check latches yourself on a regular rhythm, because a rule for children only works when the hardware does its part. A spring clip or a simple hook-and-eye backup, fitted where a latch is aging, buys the seconds that keep a determined dog inside while a repair is arranged.
KinsLe adds a safety net since Lost Pet Alert System notifies people living close by, while anyone who spots your dog gets a direct route to message you.