Individuals can choose which laws to ignore, like when they jaywalk.
Corporations, universities, etc. are very different. They create policies which are documented and which their employees are required to follow. They engage in risk analysis.
"Part of being an adult" has nothing whatsoever to do with the laws and regulations that apply to organizations. You're making a severe category error.
Organizations are made of individuals who I assure you regularly ignore or don't even read the policies they are "required" to follow.