How is the poor travel party poor?

Even if you don't have money, you can travel, take a walk in the supermarket or park near your area and see what others are doing. Travel is to go from where you are used to living to where others are used to living, and treat your own area as a strange place. Theoretically, it's similar to traveling. The city where I live is too big for me to have been alone. Then invite a few good friends to visit the scenic spots in the city that they have never been to. Isn't this a pleasant trip? The poor travel party can experience the fun of traveling without spending much money and a few bus fares.