I don't know about you, but my mom was planting food in her yard long before it was ever considered "cool" or "progressive". We had scallions, plums, apples, pomegranates, melons and zucchinis in our yard. It was part of our sustenance, and at no point was it ever considered a luxury. It was just something we did to supplement our groceries because it was practical.
Same with the house I am living in now. All the plants were sown by my husband's grandfather, and they're thriving now thanks to the foundation he laid down and the soil.
Here's hoping their green thumbs transfer to me eventually.