I think you’ve misunderstood the point by seeing it through a purely practical perspective.
The point is that the most treasured and memorable things in life are products of great effort. You can have a ready to eat meal but there’s also some value in learning how to cook and eating something that you yourself made. Sometimes a ready to eat meal is the only option, but limiting yourself to ready to eat meals for the rest of your life (for their practicality) is a very bland way to enjoy your ability to eat.