One common argument against the potential contributions of deliberate practice is: “I have been doing such and such (insert any activity) for many, many years and I am nowhere near close to anything I would consider expert-level performance.”
The short rebuttal to this is that engaging in an activity (no matter how often or for how long) is not necessarily a form of deliberate practice that will contribute towards a mastery of that activity.
Here’s a short video that I hope will make that clearer:
Happy Practicing!