The film lacks explicit LGBTQ+ characters or non-heteronormative romantic arcs. The story focuses on Hiccup's platonic bond with Toothless and his interest in Astrid. It maintains a neutral stance without utilizing derogatory tropes.

The narrative disrupts traditional hierarchies by presenting Hiccup as an empathetic, intellectual protagonist rather than a hyper-masculine warrior. Astrid is portrayed as a highly competent and physically capable fighter, challenging passive female tropes.

The cast is ethnically homogeneous, reflecting the specific Viking mythological setting. While it lacks multi-ethnic casting, the film avoids harmful racial stereotypes by focusing on a localized tribal identity.

The film critiques institutional authority and the rigid warrior codes of Berk. It deconstructs the 'enemy' trope by framing dragons as misunderstood sentient beings rather than mindless threats.

Physical impairment is central to the plot, specifically through Toothless's lost prosthetic tail fin. The characters navigate a world not designed for them, using innovation to overcome their perceived deficiencies.