While this might be self evident to those of us who have made daily practice a life time discipline, we shouldn’t assume everybody shares our understanding of its importance.
In the studio of a client of mine there is a poster showing the difference in how long it takes to do 100 hours of practice. At 5 minutes a day, or 30 minutes a week, it takes 4 years to practice 100 hours, but 30 minutes a day it only takes 9 months to do the same work.
Cognitive scientists can also demonstrate the greater learning efficiency which occurs to more substantial study periods done on a very regular basis. The 30 minute per day practicing student will actually accomplish 5 or 6 times as much learning with the same total time invested as the 30 minute per week student. Athletic coaches figured this out long time ago, hence the daily practices most school athletic teams employ.