I loved this series but I consider the characters as a vehicle for the ideas. It’s not really a character-driven work; the author is more interested in how humanity as a whole would react to his fictional scenario than he is with writing characters with depth. I wouldn’t necessarily say it’s related to the genre but there are a lot of examples of this type of writing in science fiction. I also loved Dune but I feel the same way about its characters to some extent.
This is something I worry about as well (mid-thirties millennial), but I’m really hoping it won’t be a problem. Anecdotally, I don’t notice any appreciable difference between myself and my dad (technically a boomer) when it comes to technology, but my mom isn’t as comfortable. I think it’s because my dad spends more time using various types of current tech and is willing to troubleshoot on his own, so maybe it’s just a matter of continued exposure and a willingness to learn.
At the same time I see my grandparents really struggle with digital interfaces because they didn’t grow up with them and don’t find them intuitive, in a way that can’t be explained by lack of curiosity. It’s almost like they’re not fluent in the language because they missed a critical period of learning in childhood? If a brand new, extremely different way to interface with the world takes over, I guess I could see myself and my peers struggling as well.