Right out of college, many students have roommates. Most students dont start buying a house till they have paid their loans, typically 10 years after graduation.
Thy dont statically remain at entry level pay
Typically, 5 years out, either their salary has improved or they move on.
Thanks @ucbalumnus : I didn’t realize that there literally was over a hundred thousand biology graduates a year ( and roughly 17000 students enrolled in DO or Med School… So, about 90,000 looking for a job with similar qualifications.)