Why do people go out to travel or play and take photos? Now people don't go to the photo studio to develop photos. Why? Few people develop photos.

Because it used to be film, you can't see it without developing it after taking pictures. Whether you appreciate it yourself or show it to your friends, you should wash it out. In this information age, digital photography and photos can be seen at any time, and friends can also see them when sharing them online. Of course, uploading them online is more cost-effective than spending money to develop them.