How to persuade mom to buy a travel bag?

After dinner (the most appropriate time), you said calmly, "Mom, have you experienced many societies?" Parents usually say yes or wonder why you ask these questions. Then you say, "The teacher said that reading is like social experience. We should constantly increase our knowledge and accumulate experience, and keep precious things in our hearts and minds. What do you think? " Finally, you say, "Mom, I haven't experienced society yet, so I haven't put any social experience into my heart, but I need a package to wrap my growing mood, which is a good memory for me in the future."