Even if you never want to write any Perl code, I definitely recommend checking out some of the features of Raku. As someone who is interested in language design but never has (or likely will) use Perl for a project, I still found reading about Raku's feature set super interesting. Here's a whimsical slide deck that introduces a lot of the most interesting features: [0]. Even if you find yourself shaking your head at all the craziness, you at least have to admire Raku's success at fulfilling its goals of being a post-modern language optimized for fun (-Ofun).

[0] http://tpm2016.zoffix.com/#/