Maybe breathe and let your brain have some oxygen to think about the answer to your own question.
Wearing your second job uniform while working doesn't reveal a preference for blue jackets, it just means you'd like to not be fired.
As to the difference between voluntary and involuntary, the grey line between those is exactly my point. The employee 'voluntarily' wears blue jackets and could certainly not wear one, and risk getting fired, and certainly could quit that job. A student certainly could spend far more time than their peers on study and end up with a lesser grade on their work, with presumably less returns in most cases. I see a lot of parallels between a teenage student navigating complex new social relationships and learning their way through middle and high school and an employee trying to just earn enough money for rent, in terms of both of them having to make 'choices' that do not feel from the inside like decisions they make freely and that have consequences that appear life-ruining to not take (in which case it reveals a preference for not having your life ruined, rather than for whatever it is that you decided to wear or use or do to merely keep up with the perceived requirements).