The user literally can't do this. Only the system administrator can. That's the point. Stop being disingenuous. The system works fine out of the box on any modern system. I installed Fedora 29 on a system with 2 GB of RAM and did software development on it all day with no problems. In this case a clueless *system administrator* used privileged commands to bork his system then claimed that it had a problem.
Exactly. They seem to forget that "*nix is to OS" as "C is to programming". They have same philosophy. These OS and language wa built by programmers for programmers. This OS (*nix) and language (C) is a very sharp tool, you will hurt yourself if you don't know what you're doing.
"One day I woke up and discovered that I was in love with tripe." -- Tom Anderson