This kind of thing could certainly get you labeled as a creep within the social circle.....and you will find your social circle disintegrating shortly thereafter.
As I said in the previous post, this is the kind of behavior that wouldn't go over well in a social circle in the USA.
In a gynocentric social order (like the USA and most Western countries are), older man-younger woman relationships are not well perceived. Especially when the male is 20+ years older than the female.
In a social circle with numerous 40s/early 50s women, it wouldn't go over as poorly if a 40 something woman had sex with her 45-50 year old female friend's late teen/early 20s son. The gynocentric social order would positively view a woman for her feminine empowerment if she had sex with a man 20+ years younger. Even in a gynocentric social order, there could be some hurt feelings if the mother of the young adult man found out her son had sex with one of his mom's friends.
Don't prey on daughters in your friend group. And that is how you could easily be percieved, as a predator by your female peers. Not good.
Female friends/acquaintances will very much dislike a 40s/50s man having sex with their young adult (18-24 year old) daughters. There's no way that a man can remain in good standing by doing this if it gets found out.
I think there'd be some slight differences in the perception if the 40s/50s man attempted to seduce a niece or a non-family co-worker of a female friend/acquaintance. I believe that an attempted seduction of a niece or co-worker would also be negatively perceived, but not to the extent of a daughter.
Go meet young women out and about.
For a lot of older men, this is not easy to do.
It's common for 40+ men to be lacking male friends who can join them at the bars to meet 20 something women. A lot of 40+ men have mainly married male friends their own age bracket. Some 40+ men might be fortunate enough to have some divorced male friends in the same situation as they are men. There isn't a good community available for never married, childless 40 something men. There's actually more community for the divorced/single dads in this age range.
The typical 40+ man (never married/childless or a divorced single dad) will also have a difficult time meeting women through non-bar approaching, on swipe apps, and by using DMs on social media.
Because it is so difficult for 40+ men to meet much younger women, I can imagine how a 40+ man would have interest in exploring an interaction with a 20 something woman that he's able to meet through some 40+ woman that he knows. He also thinks he might have a better chance with a younger woman that he can meet through his social network.
It's not a good idea but I can understand the thought process in why the idea would be appealing.