Farming is harder than people who haven't done it think, and surviving on the production of only your family's property is really, really hard. Source: I grew up in very rural areas, and I've seen what it entails. My grandparents lived through the Great Depression in a farming community on a homestead.

However, I don't think that's the ask, here. You don't have to choose MEGASUPERTROPOLIS or remote solo farm. There's a huge gradient between the two.

It's possible to put a little effort into gardening, share with your community, and massively reduce the overall cost of food while still having free time.