That's part of the problem. I included a spoiler with full text of the reddit post where it explains why that is not relevant to the six to eight medium to hard encounters to avoid just this kind of discussion.To be fair the DMG tells them that they can. The Immersive Storytelling playstyle on page 34 for example. On page 74 in the Find the Ideal Introduction section is suggests beginning with a social interaction encounter. On page 87 the Sylvan Forest Encounter table includes a magical plant with berries. The Urban Encounter table on page 114 includes multiple non-combat encounters on it. Most of the encounter tables do. And then there's the Noncombat Challenges section on 261 that suggests using the combat XP tables to award non-combat experience, but only if the encounter involved a meaningful risk of failure.