I am a voracious reader! I have 8 tall book cases in my house, and many corners are also filled with books. I have a Kindle that is almost full! I like to read Science Fiction for pleasure. I've been told that is not very feminine, but I don't rest my identity on stereotypes. I like to read books in other languages, I also read a lot of theology, commentaries and devotional books. My goal is to write a book with my testimony but it has not progressing well, despite numerous attempts at it.
I read extensively to my children when they were growing up - as my grandchildren are being read to. But they like me to read best, because I am dramatic and do a lot of voices to go with the characters. That requires picking older books. I find most modern children's books to be appallingly boring and PC. Give me the wolf eating up the three pigs any day, over them surviving to live happily ever after, and my grandchildren seem to agree.
My oldest son loves books. He shares various titles with me, and we discuss the books. It is an important bond we have. My second son is a Chartered Accountant, and sometimes reads business books, ethical books, and biographies of various people who have made an impact on the world. I have tried to read some of his books, and utterly failed.
My third son, to my knowledge doesn't read at all. Except work things, I guess. He also has a learning disability, which might be part of the issue.
My daughter, and youngest child is also a big reader. But she admits most of what she reads are romance type novels. She says they are trashy, and won't share the titles with me. Her husband is a doctor, and works long hard hours. So books help her fill up her alone time, when she is not visiting friends or the dog park with her dog.
My husband, besides the Bible, reads repair manuals for cars, electrical and building codes, and other trades materials. And he is usually not reading, so much as staring at diagrams and tables. I have never seen him read a novel, or even a good but fairly simple theological book. I know, I've tried to get him into books. I am not sure about the spouses of my children - they are all busy with work, children, and spend spare time on the computer.
I do believe that the Internet, at least in my life, has stolen hundreds of thousands of hours of my reading time. I am trying to change that. Right now I have insomnia for the pain and can't sleep, or I wouldn't be on the Internet.
Anyway, in a statistically too small sample, my family of 6 - with 4 men and 2 women, all the women read, and 1 of the men reads a lot, and one other reads a little. That would confirm the hypothesis of the OP.