It’s not really a complicated philosophical question.
replyLawns aren’t native to your area. That type of grass didn’t evolve there, and it didn’t evolve to being trimmed short. That’s why it doesn’t produce seeds and why it’s killed by leaves.
But where I live there are larges areas of native grass that evolved to being trimmed short by grazers, spreading eagerly through rhizomes as a survival trait because of frequent brush fires. It gets killed by leaves every spring and spreads back by the fall but after a burn the trees are gone and its one of the early succession pioneers. A maintained lawn is just holding a post-burn condition in stasis.
replySimplistic answers really work best when things are complicated philosophical questions.