Is Gen-Z adopting Ruby? I'm worried it has become the next Perl without us realizing it.

The Gen-Z range is 12-27. I think it would be fair to say their languages are whatever is being taught in schools and whatever the jobs in their region are.

I would think there's a lot of Javascript, Swift, and Java/Kotlin, and C#/C++ (gamedev). Ruby's position for Ruby on Rails app, server-rendered web apps, are probably dwindling with this group but certainly still valid. There's definitely a lot of jobs still pushing RoR adoption - just not as many (like PHP?).

There's a lot of Rails bootcamps out there and it's still a popular option for beginners.