There are a number of reasons you should do this and there wouldn't be a better time to get started than now.
1. Nearly all food in supermarkets are GMOs and chalk full of pesticides at the least. Save yourself and your family the trouble of ingesting toxins.
2. Self sufficiency starts at home, if we all grew our own food we would be able to sustain our own lives even in the presence of scarcity.
3. It is both relaxing and enjoying to take a break from destroying life and creating life instead.
4. You will save money by growing your own crops.
5. The produce will be as fresh as it gets.
If you have the land to grow food, I implore you to do so. Maybe even talk to your neighbors and promote a food sharing network between each other.
This is Switzerland, maybe it's time we did the same: