[schroeding]

Right, "advanced" into their studies, they weren't freshman but almost done with their bachelors degree.

And yeah, I believe that most developers can learn pointers and FP, sure, but on the side with pair programming and "mob programming", while still working a full time dev job?

[robertlagrant]

The point of the article here is that if it's a language your company uses, learning it is part of your dev job.

[wiseowise]

Yes.

[schroeding]

Without using their free time?

[choko]

Depends on the company. Where I work, the answer is yes. Work/life balance is heavily stressed, which has been a surprise. However, when I started my career, it was with the expectation that staying up to date with technology would require some personal time. I don't personally know anyone that didn't start a technical career without that expectation.