Considering Your Environment
VPNs may be blocked in schools and workplaces so that students and staff do not spend time on social media or access sites that may be objectionable to others. More severely, totalitarian governments aim to prohibit individuals from accessing particular websites or to require government monitoring of what people say online. Finally, VPN bans are used by individual corporations to implement geo-restrictions. Netflix is the most well-known VPN blocker, as its large collection of movies and series is not available to users outside of the United States due to copyright restrictions.
To successfully overcome a VPN ban, you must first understand what sort of VPN block you are dealing with. For example, if you're in school and want to bypass the local YouTube ban without leaving campus, it'll probably be easier than trying to unblock Netflix USA from Malaysia. If you're in China and want to access any of the numerous websites that the government has prohibited, you'll need a different approach than if you're in an open internet culture like Australia. Therefore, understanding VPN blocks is a very important thing.