Yep, 50 years is not correct.
See: https://thesocietypages.org/socimages/2015/07/03/ok-cupid-da... and https://theblog.okcupid.com/undressed-whats-the-deal-with-th... (tl;dr: women prefer men of a similar age, or slightly older (when they are young) and slightly younger (when they are old); for men it is constant)
Re:Five Years That Changed Dating
by WalterSear on Sunday December 23, 2018 @10:23PM
(#18750069)
Perhaps the parent commenter is 50.
Perhaps within their own age group, but I don't believe for a second that a 50 year old man is more desirable than a 30 year old man. If that were true then the 50 year old men would be able to date the most desirable women, i.e. 18 year olds according to your statement.