B/X avoids fights, but think about this

 https://bxbandits.substack.com/p/heres-what-i-love-most-about-bx

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Many readers will have fond memories of epic fights in B/X. Of course, B/X has combat (just as it has social interaction)—it’s just not the primary focus. As far as character survival and advancement are concerned, combat is the least preferable option in most situations. If possible, avoidance, evasion, and negotiation are typically better choices. A lot of characters die while B/X players are learning this lesson—after which, I expect, the character survival rate in most groups goes up significantly.

And that’s the point. In B/X, the dungeon is a puzzle—a pseudo-Darwinian simulation, in which certain choices are more conducive to survival than others. For characters, progress in the game is measured in experience levels. For players, however, progress is measured in learning which choices lead to character longevity (and thus, higher experience levels).