Do I need to take a suitcase when traveling alone?

Whether it is necessary. It depends on your specific itinerary, the number of days, and the distance traveled.

1, if you just go out for two or three days, there won't be much to do. It is more convenient to carry a backpack directly.

2, or your destination is different every day, so it's too hard to take a suitcase to play.

3. But if you want to go out for a long time, and you want to stay in a certain place for a few days and go abroad by plane or something, it will be more convenient to check your suitcase and bring more things.