Supply and demand.
I'll work for a week as a landscaper.
The landscaper will work for a week as a software engineer.
Who do you think will fare better at getting close to a decent job well done?
I'll work for a week as a landscaper.
The landscaper will work for a week as a software engineer.
Who do you think will fare better at getting close to a decent job well done?
Of course people who sit all day like many engineers will have problems doing manual labor. The problem is a good amount of them have enough experience with their hands to be a landscaper on demand. You will not find any but the most Einstein level landscapers able to immediately do productive software engineer work.
The % of people able to do it is much lower in software engineering and that reflects its compensation compared to landscaping.