Dating in real life within a small(ish) social circle and modern online dating where the available pool is literally millions of people is completely different
Online dating is a tiny, tiny blip in the world of dating. Dating itself is a uniquely American practice and a tiny, tiny blip in the world of sociosexual dynamics. People meet, hook up with and bond with each other in all sorts of creative ways that goes way beyond Tinder, Bumble and Okcupid. If your only outlook on this stuff is through the lens of apps owned by shady companies optimizing for user engagement, you're going to have a skewed and miserable worldview.
Online dating is the only dating for many young people nowadays. Alcohol used to be a major factor in finding a partner but young people are drinking less and less by the year.
The social skills of the youth are also getting worse due to smartphones, leading to less interaction in schools at workplaces etc