A little past college age now, but even people I know in their late 20s have given up on dating and such. I won't pretend to know all the reasons, but I find it funny how much every one I know hates dating apps for good reasons, but always comes back to them.
> "A little past college age now, but even people I know in their late 20s have given up on dating and such."
A major reason is that romantic relationship experience compounds, and so it's difficult to start with relationships later in life. For many people, it's much harder to start a first romantic relationship, than it is to develop subsequent ones. Multiple rejections early on, especially when other people seem to find relationships easy, can lead to reduced self-esteem ("Am I creepy? What is wrong with me?" etc.). It can lead to habits such as having a huge fear of rejection and flirting through physical touch, which leads to a lack of confidence reinforced by further rejection, which further erodes romantic confidence in a negative feedback loop.
Low-quality romantic advice on the internet, such as on Reddit, worsens the problem. Anecdotally, I've found the common, highly-upvoted advice of telling a person "I like you" before you're dating to never once work in my personal experience, while leaning in and pausing while paying attention to social cues to kiss on a date actually led to relationships.
My advice to any guys in their 20s trying to date would be:
1) ignore most internet advice on dating (maybe not this comment, but absolutely avoid incel communities and 4chan),
2) consider an experienced psychotherapist for anxiety if you have rejection anxiety, and
3) try to observe a male friend who is good at relationships who is a moral person, and see what he does (e.g. jokes in a flirty way, and notice how he flirts with touch); if you don't know a friend like this, try to make one (e.g. through a social activity like rock climbing or martial arts).
