It all depends on your living style and how expensive the bare living is. I could hypothetically sustain a family of modest lifestyle (nowhere near poverty, but

It all depends on your living style and how expensive the bare living is. I could hypothetically sustain a family of modest lifestyle (nowhere near poverty, but limited expensive entertainment and gadgets) at least 6 with 200 acres here in Europe. 10k acres would be a giga mega super big farm here, somewhere near 1000 acres people usually consider it exceptionally large and essentially just a business and not a traditional farm anymore.