I would say that you want to rationalize laziness. And that is not some derogatory statement. Everyone feels like putting off the task that's most important at the moment and switching to some auxiliary activities, preparations, and house chores.
Kids crave whatever is not school or homework – games, movies, internet browsing, etc. Adults may have felt a sudden urge to go grocery shopping, cooking, and cleaning, which seems productive but may still pose as an escape from some other job they are avoiding.
The only way to be exceptional at something is through sacrifice. Otherwise everyone would be exceptional. And that sacrifice is whatever gets in the way of the utmost consistency in practicing, improving, showing up to and learning more about your chosen subject. You have to go to lengths that other casuals are willing to go to and that's harder than it sounds. And this will, by definition, not leave you much time to also be really good at much else – that's the other sacrifice. Being exceptional is not always worth it depending on your situation but if you do want to be, you HAVE TO be prepared to sacrifice comfort and an easy going 'balanced' lifestyle.
the common experience... very general yappin in art, science, or even business and marketing... people want to immediately innovate on things they can't even do it properly. in writing, they want to discredit the story structure without even know what it is and what's in that. in music, they ignore melody, phrase selection, etc.