Full House star Dave Coulier, who portrayed Joey throughout its run, has opened up about why the show was cancelled after season 8, reflecting on the reason why it ended at that point. The long-running sitcom followed Danny Tanner (Bob Saget) raising his daughters as a single father with the help of his brother-in-law Jesse (John Stamos) and his friend Joey (Coulier). While the series was a success, Full House was ultimately cancelled following season 8, something that didn’t deter its long-standing legacy.
https://screenrant.com/full-house-season-8-cancellation-coulier-response/