social connections would likely serve you better than wasting all your time and energy working a yard garden that produces a measly haul

Join a community garden. You get both social connections and the yard garden experience - and as a bonus, your social connections are with people who know how to grow food and can give you advice 😆

That being said, don’t be too dismissive of “supplementing” your diet. If you know what you’re doing you can grow all the fresh veggies a person needs on a few hundred square feet per person. Fresh veggies are the kind of food most vulnerable to supply chain disruptions - like if, “hypothetically”, some toddler dictator decided to throw a tantrum for no apparent reason and start a war right on top of the shipping lane that the majority of the world’s fertilizer passes through - and they’re also the most beneficial kind of food to grow yourself, because you can grow varieties optimized for taste and nutrition instead of varieties optimized for shipping and appearance on grocery store shelves.

(Book recommendation: Ten Tomatoes that Changed the World. Read the chapter on how fresh Florida tomatoes are grown and you’ll never buy anything but canned tomatoes again 😆 )

Yeah, it takes knowledge and experience. Which is why you should start gardening now, so that you’ll have those skills when they become necessary.