The answer was, of course, so simple. The new Super Kroger (Kroger Marketplace, is the correct name, I believe, but you get the idea) has not only car carts but also kid-sized carts, which are simply miniature versions of the real thing. How clever are their people? Connor loved it. Of course, he wanted absolutely everything in his cart, which didn't quite work out since we needed four gallons of milk and three 12-packs of coke (healthy, we know, but it was on sale) in addition to some other items. But, with almost everything in his cart, he had fun anyway. He only tried to take down a few people with his out of control cart. But, it was his first time, after all.
Now, who wants to take the kids grocery shopping? They actually enjoy it here.