Some things are just super easy to grow, others take so much effort its too much for the average person. But hell yeah, grow ur own food if u are lucky enough to own a garden.
You can just take the bottom bulb from green onions, and just stick it into some dirt. Even when they're old and the green parts are slimy. I never bother watering, and they do just fine.
You can even stick them in a glass of water to get them to freshen up a little, but without dirt for nutrients, they will thin out and die eventually.
The trick with garlic is to just bury it everywhere in your garden where there's space, no need for a vegetable garden. The leaves take minimal space and digging them back up only requires making a small hole, plus they apparently keep some pests away.
Picking up gardening at any age is a good thing not only as a way to stay active and keep your pantry better stocked but you also get a good sense of accomplishment
Pretty sure it's this youtuber called Pro Home Cook.
He and his brother used to do home recipes with limited pantry size and tools.
But he got too big and started doing fermentation, sprouting, brewing and gardening.
Gardening is cool and absolutely can decrease your spending, but I want to take a moment to talk about how the efficiency of a home garden will never match industrial farming and that the cost effectiveness of fertilizers required to grow all of your own food would negate the savings unless you've got your own ammonia mine and recycle all of your poop.