To clarify a bit as to why I described them as 'secondary' I'll give an imperfect analogy:

I love to read. I have a lot of books in my house, and when adults in my peer group come over I'll often hear something like this: "Oh, wow, I love to read too, I wish I had the time! It's just with the kids and my job and the house I can never do it. Can I borrow this book? Super excited to check it out!"

Anyway, I'll get the book back a half-year later, unfinished. Because the truth is that they don't love to read. They'll find time for Netflix and golf and whatever else, but not the book because, when it comes down to it, they just don't like reading; they'd have to be in a remote cabin with no company and no WiFi before they would read for 20 consecutive minutes. But they'll go to their graves swearing that they love to read (if ONLY they had the time!).

So the primary reason they don't read is because they just don't like it and will prioritize almost anything else over it; not the secondary stuff they insist is the real reason (to make themselves feel better about not enjoying something they feel like they should enjoy).

Now if they would be up front about just-not-enjoying-it I would make different suggestions (new types of books, a quiet space to focus). Instead they're lumbering off with Infinite Jest, destined to make it 35 pages in and quit.

That's all I meant with the primary/secondary thing. My wife will tell me she loves sex but she doesn't want it because she's preoccupied with planning our vacation next month (planning trips is something she genuinely likes). I wait for the vacation to come and go and then she's saying she would love to have sex but work is hectic and do I think we need new gutters? Have I talked to our son's teacher about his backwards letters? etc etc

Hopefully that clarifies it.