Lapel Pins

Back home in Philippines, we can't get inside the school campus without wearing uniform and ID. Here in Thailand, specifically in my school, our students got IDs but they don't wear it for everyone to see. They use it for library use. Parents got hold of another copy of their children's ID in order to enter the school and fetch their children. Our students don't need IDs because their names and school's logo are already displayed on their uniform like Hyzyd's:

As for university students like my sister, they don't need to wear their IDs, it's all about lapel pins custom like these:

Almost all Thai university students wear the same uniform. The only way to recognize the wearer's university is through their lapel pins bearing the name of their school and the university's logo.

...even their belts are customized!