Given how poignantly you expressed my own experience of living with ADHD Primarily Inattentive (what you called ADD above), and as someone on the cusp of becoming a father, I would appreciate this more than I can express.
As an adult with ADD, it was a miraculous new perspective on tracking all the things I used to fail to do. I so, so wish I'd had it when I was dealing with small children.
I can't count the number of times while talking to my psychologist, in the middle of a breakdown thinking "If only there were a system that I could offload all of the dumb things I can't remember to do..."
...and then laughing my way out of the room because my wife told me weeks earlier that she wishes I were using my journal. She notices that I'm happier when I use it, she is much happier because she doesn't have to ask me to do something 4 times...
Using OrgMode for keeping my work-life in order has been a life-changer. But perhaps a bullet journal is more suited for keeping personal, and family life. I've never looked into them properly, but will definitely do so today.
I’m constantly playing the “no ones died yet on my watch” card.
It somehow doesn’t make her feel any better.