Those who watch football don't really know how others struggle to do what they do. Someone once asked me that, how do I enjoy/manage to watch group of men running up and down and chasing after a round object on a green grass. Some people even get bored and sleep off while watching a game. Truth is, I never liked football until few years back. I think I started finding interest when I started listening to football analysis over the radio. And today, I can confidently say that I have watched the entire game that the team I support played through out this season without missing any.
TV subscriptions are sometimes not always possible because of power issues in some countries. I prefer streaming my games. Anyone can certainly start watching sport. All that is needed is just interest.
I also never enjoyed soccer very much. Never enjoyed playing it at the school, neither on the streets. I always prefered videogames over sports. I have a club I've been always fan of, but didn't feel excited about it at all, because my club usually didn't perform very well. Then I enjoyed watching only world cups, and that was the main contact I had with soccer every 4 years. However, last year I felt really motivated to start watching soccer matches more often, as I got triggered and inspired by my club Botafogo, which displayed an awesome performance and ended winning two important titles: Campeonato Brasileiro and Libertadores da América.
It really changed the importance soccer have for me. From "no interested at all" to "following the daily news and watching the matches every week". By following the daily news and watching the matches I think it's the main way to learn more about sports.