Speaking from experience, ignorance can be a real pain sometimes. I mean, it's nice to not have to deal with some things, but for a lot of other things that one might not know, other people still do and it just gets frustrating not being able to understand what they go on about. That's why I used to have trouble understanding the concept of 'ignorance is bliss', because a lot of the time in my past, it just frustrated me more than it kept me happy. It might also be one of the reasons why I can't trust my own judgement.