What if there is a diamond in a pile of garbage ?
If someone legitimately enjoys casual sex AND has no baggage OR some kind of dark triad trait.. is that sort of person common, or rare?
As for the act: If there's no harm to anyone, its great. ON that light, casual sounds logical. But is your own body just another playground ?
Throughout history, there are numerous records of temperance being a virtue and hedonism being a vice. Coming from all sorts of corners.
Its not as clear cut.
I'm making no assumptions _about_ intent.
I'm saying whether it's a "red flag" depends _on_ intent (which is then assumed to be known, at least internally by said person(s)).
I'm making no correlation between having causal sex and the attempt to establish a long-term relationship, I don't know how I could more explicitly define those as two different goals.
Maybe if I write it in a more simplistic (albeit, less precise) way:
* Many relationships may likely a red flag in a person who's seeking long-term relationships (ie, they're trying and failing very much, they're probably not a very good partner, or has very good judgement).
* Many relationships are not a red flag in a person who's not seeking long-term relationships (they're doing their thing, and all is good, as long as you're aligned with that).
People go out, have short relationships / flings, one night stands without any intent other than have fun. It's fine. Let people have things.