Can every course bring in something practical for life?

I think that the answer is yes. Why? Because every course has something specific to it that can be used at some point in your life. Even if you think what you are doing now, you will never use in real life, then maybe the thing you are learning is teamwork or working with a specific computer program.

To put this into contrast, some learning courses do not directly incluence and are not directly practical for real life use, but it comes a time where you use the extra things that you've learned and when you put them all, it will all make sense.