As with most things in Hollywood, celebrity couples have the ability to set certain norms when it comes to dating with age gaps. There are many success stories like Blake Lively and Ryan Reynolds, who have an 11-year age gap, as well as "Bachelor in Paradise" stars Serena Pitt and "Grocery store Joe" who got engaged on the seventh season of the show and also have an 11-year gap. While Kris Jenner's 25-year difference with her boyfriend Corey Gamble caused major speculation at first, it seems like emotions leveled out once the couple became established, which we were all able to watch transpire via "Keeping Up With The Kardashians."
On the dark side of celebrity dating, we have people like Hugh Hefner who was in his 80s dating women in their late teens and early 20s. Kendra Wilkinson, one of Hefner's "Girls Next Door" girlfriends, was only 18 years old when she moved into the mansion. Although the women were legally adults, most people had moral qualms with the age gaps and viewed Hefner's dating preferences as predatory. This is likely due to the power dynamics and manipulation that often accompany larger age gaps.
When one person has money, fame, and influence and the other person has youth and beauty, it's hard for society to see a mutually healthy relationship, especially when Hefner was the one giving his girlfriends a weekly spending allowance.