Teaching your child not to run in a parking lot

I have seen this as a reason many people will spank their child, if they run in a parking lot. I am just curious, at what age do you feel that a child understands that they cannot run in a parking lot? I agree with a four year old getting in trouble (spanking, time out, whatever) for running around in a parking lot, but much younger than that I think it's more the parents responsibility to either have the child in a stroller, shopping cart or holding their hand.

Agree? Disagree?

    Everllaliz Lopez
    I always get a shopping cart before getting my kids out off the car!
    About Melissa
    Birth: December 31
    On Moms.com since: Mar 3, 2014
    I am a single mom of two fantastic kiddos that I love to pieces. Currently in school working towards my teaching degree. You can find me most days on www.mommathoughts.com when I am not here chit chatting! :)