Lettuce is something people get with their sub sandwiches. It’s like the default veggie people ask for with their subs. It’s also the thing that gets put on first, and most, among the veggies asked for.
Lettuce also the least nutritious of all the vegetables, mostly being water inside generic plant cells with how pale the sub lettuce tends to be. It’s not much more than that even when it’s not so pale. It’s neither as colorful as the other vegetables that make them more nutritious, nor as tasty, I might add.
Thinking about this, I recently made a tiny, tiny life change on this matter.