Portuguese universities aren't the only ones, I am pretty sure many of the other European ones do the same.

Also, I actually learned C++ during high school, back when C++ARM was the only "standard", and most C compilers still did a mix of K&R and C89.

Nowadays many high schools do stuff with Raspeberry PI and Arduinos (Processing is just C++).

And you have books like these available https://www.amazon.de/f%C3%BCr-Kids-Grundlagen-Spieleprogram...