The phrase "student lifestyle" refers to the way of living, habits, and experiences that students typically have during their time in school. Full definition
This is in the context of having started full time work in 2015 and (me at least) living the college student lifestyle for 10 years before that. (retireby40.org)
This stage involves pretending you can still get away with your sloppy student lifestyle while ignoring new responsibilities. (inspiringinterns.com)
In the past year the school has undergone a complete transformation in almost about everything the way academics are run student lifestyle and where money gets spent. (zillow.com)