Joyful yeah DH asked me that too
. I found it quite hard to articulate but I'll try to. In the main, I found (find?) the fact that I have no 'access' to his work life quite difficult - it's a huge part of his life and something that's very important to him, but I'm totally shut out from it. I was used to having a bit of a grumble/rant about work at the end of a day in previous relationships and it took me a while to get used to the fact that that doesn't happen.
Therefore, as I have no access to that part of his life, I was encrossened by having to answer personal questions about me. It felt like having the responsibilities but not the rights, IYSWIM? I'm probably not getting this across very well... apologies for that.
However, I got on with it. There wouldn't have been massive ramifications if I'd said "No, not doing it". All that would have happened would be that DH would be restricted to working with data that wasn't sensitive, but as I said, he loves his job, it's been his career for 27 years now, and I was damned if I was going to have that happen because I felt a bit precious about my privacy. Marriage being about compromise and all that 
We had to re-do it all recently and poor DH was worried that I'd have another tantrum. Thankfully it was just updating it all. I was much less ranty the second time around.