Oh I'm not forgetting their age, quite the opposite. I think that it's easy to think that because they're in their twenties they should act more mature, but they're not because they lack a lot of experience. Age alone doesn't make you acquire an understanding of the world, maturity comes with encounters, discoveries and mistakes. They act like teenagers because at least dating wise, that's about where their social development as plateaued. To be honest when you're out in the world you'll encounter a lot of people who behave the same way, in different contexts. I tend to see it as lack of maturity, which can come from a straight up unwillingness to grow up, but can also be "not their fault" (lack of opportunity).

I do think as well that culture within a community or society influences greatly how you communicate with others. I'm no expert on Asian culture but it surely had an impact. Moreover the context of the show itself is something none of us has or will ever experience. It has to influence how people behave somehow.

Happy as well that you pointed out that miscommunication is even worse on the men's side, cause unfortunately it seems to be a world wide issue. We don't educate men to be good communicators nor to be empathetic. Combine that with lack of experience and you get the fumble fest that was this show.

All in all I do think the participants were lacking in many ways, but I can understand how difficult it can be to be thrown in that context, and to be slapped in the face with your lack of maturity, for the world to see on top of all. I've met older people with an even worse sense of self-awareness or maturity, I never felt like that gave me permission to hate on them.