Read the following passage and choose the correct answer to each of the questions.

    The thing I liked most when I was small was the change of seasons. Spring, summer, autumn and winter — I could see them all come and go and each one was completely different. Now in the city, you can buy summer flowers in winter and eat the same vegetables all the year round. Whereas, in the country, I could only eat things at certain times of the year, for example, strawberries in June and turnips in winter. I lived my childhood with the seasons.
    We also made most of our food and would never eat frozen or tinned food. Everything was fresh, so it must be better than the type of food I am taking now in the city. City people may think people in the country miss a lot of things about modern life. In fact, in my opinion they miss a lot more than people in the country, they miss real life.

Why did the writer never eat tinned food when living in the country?