[TomK32]

Not everybody was spotted and diagnosed at a young age. We can safely assume that a genetic condition like ADHD is evenly distributed through the population, hence we must assume that about 5% of adults of every single age-cohort are ADHD. I'd love to see data on the age-distribution of actual diagnosed adults, I'm sure we'd see a lot less than 5% for the older adults.

You can go a long way with undiagnosed ADHD but it will always hold you back. There's 60+ pensioner in the local self-help-group, he doesn't use the internet and uses and old Nokia. He was give a leaflet and after that a pill by a friend (don't do this!) and for the first time his mind cleared. He finished uni when he was young but never achieved much, never started a family; now is a few weeks away from a diagnosis and medication that will change his life. He wasn't the only one diagnosed as an adult in the group and it took me 42 years to figure that it's my mind working against me.