Early on, it's good to develop the ability to write. Learning to write is a useful exercise, even if what you're writing about is not that relevant.
I, myself, don't like to see a film on Friday night and then forget it by the next day.
I've been vegan for 15 years, and it turns out it makes a very big impact on the environment to eat fewer animal products, which cause more greenhouse gases than all of transportation combined.