While there's no specific reason for Younger's cancellation, the viewing figures for season 6 weren't exactly great. According to TV Series Finale, the sixth season averaged a rating of 0.13 and pulled in 580,000 viewers. Compared to season 5, "that's down by 39% and 14%, respectively."
Whether low ratings and viewership were the cause of Younger's downfall is unknown, but it's likely to be a major contributing factor.
However, the story of Younger isn't coming to a complete close. In October 2020, Star confirmed that Hilary Duff will continue her role as Kelsey in a Younger spin-off. "It's just something we've been thinking about," Star told the Associated Press while promoting his Netflix show Emily in Paris (via ET Canada). "I love Hilary Duff, and I think it's going to be something that [will] possibly be a whole different show than Younger but sort of it would be her character." While a network hasn't been determined for the show, "sources indicated the Paramount Network is a likely choice."
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