I can make way better tomatoes in my backyard garden then anything you can buy at the most premium, organic farmer's market you can find. Part of the reason is that I can care for my tomatoes to an unreasonable level since I know that I am the one that's going to be eating them.
"Home grown tomatoes" may be best when grown by good gardeners (i.e. some people are just better with kids, including their own) and the ideal environment (parks, museums, grandparents nearby). But it's not a universal truth.
A dedicated artisan can beat even an expert mass producer every time.
I certainly still do a lot of parenting for my daughter (I don't outsource all of it!), but I do use external daycare, just as I am sure you buy food from places besides your garden.