The correct answer to this open question is the following.
We can use discipline to solve present-day problems in my own community because discipline makes us goal-oriented, perseverant, and focused on accomplishing the goals, whatever it takes.
The problem in modern-day society is that people want things easy. They have forgotten that good things happen as a result of the commitment and hard work. And that is what discipline gives us: to do the right things, the right way, and at the right moment. Discipline is necessary to stay on course, eliminate distractions, and to focus on the task at hand.