Can we not have random inappropriate and uninformed comments about ADHD, please? Whether intended or not, this comment plays into old, tired stereotyped thinking that really, all ADHD people need is to have more self-control. Thinking that ADHD is about self-control and not wanting to delay gratification shows a complete lack of understanding of what the disorder actually entails (in particular, ADHD qualifies as neurodiversity, and shares many genetic indicators and symptoms with autism spectrum conditions).

On top of that, it's completely unnecessary for the point you are trying to make.