Never leave your child in the cart while you’re loading the groceries. You leave your back to them and you expose them to potential abduction.
You DO want to load up your kids first so they are buckled In and safe.
Side note!!!! Do NOT put your keys in the ignition and start the car. Abductors can then hop in your vehicle and simply take off. KEEP YOUR KEYS WITH YOU!!
The reason you need to park near a cart corral is that once your kids are safe in the car, and your stuff is loaded, you would not need to leave your kids unattended in the car to take the cart back. It’s right there.
P.S. if you cannot find a spot near a cart corral and you would need to leave your car to return it: DON’T. Leave the cart in the parking lot and don’t feel one ounce of guilt. Your child’s safety is way more important. Never apologize for putting your kids first.