It’s a huge difference having a loaded barbell which can move in every dimension on your shoulders versus a calf raise machine which is fixed in place and cannot move around!

I’ve squatted barbells since roughly 2006 and the feeling of having more than 100kg on your shoulders is very intense, even if you’ve trained up to it. It feels like it’s crushing your whole body and even breathing is hard.

The idea that an untrained person could put a 180kg barbell on their shoulders and be comfortable AND move around is laughable, they would collapse very quickly.