Because people should be self-motivated, at the age when they can work hard, they should work hard to realize their greatest value. When they are old, they will not regret it, and they can live a comfortable old age. As the saying goes, if a teenager doesn't work hard, the boss will be sad. In other words, don't choose comfort at the best age. Today's efforts are for a better tomorrow. Maybe today is bitter, but I believe the future will be sweet.