I think the described scenario would be reasonable for a local (with social connections) who has a paid off house where the roof and other major maintenance costs are all recent (won't need to be replaced in his remaining years living there) in addition to a vehicle that is going last them the rest of their driving career.
If someone from, say, Mississippi, is dreaming of retiring solo in "elk country" Montana at age 67 on $2,800 SS and $300k in savings/IRAs, then the answer is no: its going to be a huge mistake and you don't know what you're doing, how to do it, you're too old to learn and don't have the runway left to justify trying to get that retirement dream in the air. Best to hope that your adult son has a good job and can afford to take you both on some guided elk hunts for a few years.