Newbies want a compelling catchphrase:

C: So powerful you can shoot your foot off!

Rust: Now that you've shot your foot off, let's not do that a second time.

Javascript: It runs on the server and in the browser.

Typescript: It runs on the server and in the browser, now with types!

In contrast,

PHP: Not sure if I want to be a templating language or general-purpose programming language.