Nope
No, it's not in any way an obligation
No
NO, not at all really
No.
No
No, you really don't have to because it's not an obligation in any way
no
no
The answer is no because summer is a break, not a station
No, they just do it for funds. it is not required by curriculum.
No, it's not really obligatory in any way because it's summer break not graduation
No, it's not really needed for university students to do so