Most people believe they can learn a skill if they put in the necessary time and effort (according to a survey in A Skills Based Approach to Developing a Career). And this is apparent in everyday life; people are willing to give learning a skill a try.
One example is learning physical skills in sports. Players are willing to build their skills in practice for their own growth and that of the team. Some improve marginally, others improve immensely; some play just for the season, others for the rest of their lives. Regardless, over a specified period, all players commit to learning skills.