Netflix's 'Sex Education' Ends After Four Seasons As Characters Graduate and Move Forward

The fourth and final season focused on characters experiencing major life changes and self-discovery as they graduated high school.
Several main characters did not return for the final season as actors moved on to other projects.
The new season introduced new characters and settings, including the inclusive Cavendish College.
Major storylines involved Otis struggling to restart his sex therapy practice and Eric embracing his identity.
The bittersweet finale showed characters finding growth and closure as they embarked on new chapters.