Are dating apps not prevalent there? A major novelty of dating apps is that it allows you to meet people that are completely removed from your social circle, which sounds like it would be pretty useful in Japan.
Dating apps have the same issues worldwide as they do in the US. And we have no end of laments regarding OLD in the US.
Dating apps have issues, sure, but those issues have not even come close to stopping people from using them. Dating apps are ubiquitous among those in their early 20s here.
It’s because it provides false hope. Many people can tell you about the hours wasted on the apps.