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Not much: you will need to find a job after you get a degree. Which will most probably not be physics, so you might as well find it more useful to spend your student years on something that will give you more possibilities.

"How should we make it attractive for them [young people] to spend 5,6,7 years in our field, be satisfied, learn about excitement, but finally be qualified to find other possibilities?" – H. Schopper

But you can also spend your student years working for others to be disposed of by policy and find that your most valuable young years were invested in something you will not be able to benefit from yourself.