In a comprehensive breakdown, Brett and Kate McKay explain why continued learning is vital to living a full life. For instance, you will likely earn more, whether because your credentials keep you in demand or because you have developed enough skill to start your own business. Another benefit is you will become generally more interesting and charismatic, able to hold a conversation on any number of esoteric topics. As for barriers to learning, free time is really the only major constraint anymore because the Internet has conquered problems of money and location. With that in mind, if you are looking to become a lifelong learner, foster a growth mindset where you truly believe you can make incremental improvements to your perspective and what you know. Then seek out sources of knowledge that you think will be of the most value to you.
This is the tip of the iceberg. You can view the full explanation here: http://www.artofmanliness.com/2013/03/18/how-and-why-to-become-a-lifelong-learner/