I live in Germany and my grandparents, my in laws, my sister in law and me and my boyfriend all have a proper education and enough money, but we still try to live like this. We all have our gardens with fruit and veggies, my sister in law even has a bread baking oven, she has chickens so does my grandma. We share our food with each other and start to preserve our stuff as soon as it starts growing. Last year I didn't have to buy potatoes and onions and tomatoes and zucchini and carrots and leeks because I grew it all myself. My sister in law is one step ahead and even makes her own noodles and instant soup and dried fruit, my mother in law makes a shitton of jam, and we all just share and exchange. But we still have a normal job ( except for the in laws and my grandparents as they are retired). I know that we are all very lucky to have pieces of land where we can do that, but it's definitely a lifestyle you can easily incorporate in a normal civilized and educated life without being poor or backwards.