OK. me and my educator hat.
Developmental Coordination Disorder (DCD). Developmental Coordination Disorder.
Doesn't mean they can't ... it means that:
1) coordinated neuromotor skills take significantly more effort to learn
2) not all skills can be fully mastered
3) may affect gross skills and not fine, or fine skills and not gross... or both.
Therefore, (assuming just for argument that Terry's son HAS Developmental Coordination Disorder (DCD)... not saying he does)...
I'd be guessing that he has put a LOT of effort into mastering the fine motor skills related to smoking, and not much effort into learning the fine motor skills for dining.
It's exactly these kinds of things that make it so that schools do NOT believe that Developmental Coordination Disorder (DCD) exists. If you just try hard enough, you can do whatever has to be done. AND THEY CAN'T. Because they cannot sustain the effort, or cannot take it to the next level. difficult child can do calligraphy and origami... but cannot take notes listening to a lecture. He can't coordinate input and output simultaneously. It takes so much effort to write that he can't listen. That's just ONE example.
The problem has been known for generations, but brushed off. It's assumed that kids will grow out of it (they don't). Its also assumed that more effort will make a difference (it does... it literally kills the kids). But the impact is HUGE - in-class problems, but also huge social impact.
Developmental Coordination Disorder (DCD) is a stand-alone diagnosis. If you have Aspergers or Autism Spectrum Disorders (ASD), they won't give you the diagnosis, because... those problems can also be imbedded in the Autism Spectrum Disorders (ASD) diagnosis. But the symptoms and challenges and accommodations are identical.