Finger exercises are of paramount importance in order to keep our technical dimension up to the task. In his last article, Nicolae Mihaila shares with us some tips on how to improve our technique and piano routine.
I find your observation unbelievable taking into account we use our fingers to play
Focusing on dexterity is somewhat like a student trumpet player who only wants to play high notes.Yes, you have to learn them someday, but they are a tiny part of the skill set, and not the part that limits a beginner or intermediate. For the beginner, keyboard geography and coordination are the hard parts on piano. It will be years before they have a challenge in dexterity. They will work on it along the way, but it won't be an impediment until they get into advanced literature.