Not everyone's wired the same. A close family member was diagnosed with ADHD and he describes his battles with procrastination as if there was a glass wall stopping him from doing whatever he was meant to be doing. So easy for someone else to say "what's the big deal? Just do it!".
I understand ADHD and mental illness can make this extremely difficult, if not possible. You make a good point.
The type of procrastination I was referring to wasn't related to that. It was related to the idea of work being more optional than required and seems much more prevalent that\n the % of the population that struggles with the above.
