That depends on the license. Music is also available on Youtube without authentication requirements but I don’t think you can just download those and do whatever you want with them.

Everything Herb Sutter says about the popularity of C++ should be taken with a huge grain of salt.

Right, so you can’t “enforce” a return from the function.

shouldn’t Rust enforce returning from function

How do you enforce returning from exit or a function with a loop that never terminates?

You’re kidding yourself if you think most people in this thread are actually programmers. Most people here wouldn’t know the difference between C and Rust code if they saw it, let alone be able to write anything in either language.