Yes, there are already many people who are into this, but a greater number of people are not used to this and so are not doing. Instead, they keep on buying and storing a lot of foods and when they get spoiled, they just throw them away which means a total waste of money and food when in fact most poor people have not even eating three times a day. So maybe the good thing to do is to educate people on how to plant and grow their own food backyard, as that would mean saving their money from buying and can also give extra foods to those neighbors who are less fortunate.