The central gay relationship between Charlie and Nick dominates, culminating in their first sexual encounter framed explicitly as a milestone in LGBTQ+ intimacy, while subplots amplify non-traditional identities: Elle's trans journey confronts transphobia in a radio interview ambush and art school dysphoria; Darcy's lesbian relationship with Tara; Isaac's asexuality arc; Imogen's compulsory heterosexuality realization leading to queer awakening. Mental health crises—Charlie's eating disorder, self-harm, and depression—are inextricably linked to his queerness and minority stress, embedding systemic oppression narratives.

Casting prioritizes identity politics with trans actors Yasmin Finney (Elle) and Kizzy Edgell (Darcy) in prominent roles, alongside diverse ethnic representation that some fans criticize as insufficiently activist on racism. Creator Alice Oseman spotlights these elements to challenge norms, turning the series into a didactic celebration of queer thriving amid bigotry. This centrality compromises entertainment by subordinating universal teen experiences to ideological messaging, alienating broader audiences despite competent execution for niche progressive viewers; the story collapses without its LGBTQ+-centric framing, rendering it a blatant vehicle for normalization of gender fluidity, identity politics, and critiques of heteronormativity in a traditionally straight school setting.