The olive harvest (Στις ελιές)

What would Greece be like if it didn't have any olive trees? First of all, the fields would be bare: vast expanses of dry brown fields in the summer, damp green fields in the winter, absolutely useless terrain, good for taking a dog out for a walk while the person holding the leash jogs ahead of them. There also wouldn't be any olives to eat; instead of a few black olives in a Greek salad,