Perl is a well-known programming language with long development history. The same long history provides the countless modules written in it, and distributed in various channels throughout the World Wide Web. As with most programming languages, if you implement something that you find useful, and maybe write it in a generic way, there are high chances others would find it useful too.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-install-cpan-on-redhat-8