They are not mandatory in many subjects. In fact they are wholly inappropriate in some.
Some professions such a police, have a mandatory age retirement but most occupations do not.
Fitness is compulsory in some professions. However it would be impossible to make it universally mandatory
You need writing skills in just about any area of study, including physics and engineering - during the study, you'll have to write essays, and later, for real-life work, you'll have to write reports.
Science professions, Maths, professions such as mechanical and electronic engineering . Biology & chemistry. It can be used to model sound - all kinds of applications.
The word mandatory means all required.
All satutes are mandatory, that's why we have the law and the legal system to back them up.
Not Mandatory for all...
no.
No, each of the professions will have license, certification requirements, and procedures particular to themselves.
All of Dhani Harrison professions include being a guitarist, musician, writer, film producer, author, singer, and a song writer. These are all of Dhani Harrison's professions are.
Receipts are mandatory for all expenses of $75 or more and all lodging expenses.
Military involvement is mandatory in Mexico for all 18 year-old males.