My oldest son is a college freshman this Fall and the following is the connection between college and network emulators.
Living away from home for the first time, my son has to overcome homesickness while applications must overcome impairments during network emulation testing.
There is a tougher workload in college which means longer hours studying. Whereas increased traffic translates into longer buffer times and delays.
One advantage of college is more freedom on a daily basis. Similarly packets may take different routes through the network when there is more than one path between two points.
The need to do laundry every week never goes away just like testing. Testing is always needed to ensure new code or features don’t affect past code or performance.