The people who say this, ain’t actually dating or tried to date younger women.
There is no free lunch. BECAUSE younger women haven’t been beat up by the world and/or dating, they still think the world is their oyster. Younger women are raised by social media and all the delusion, vapidity, and materialism that comes with it. She’s gona have 1k+ followers, she’s gonna think she can do better, etc
So there is a certain age sweet spot as you get older. Traditionally it’s half your age plus 7 but I’d make it more like half your age plus 10