You should always care about your education.
Simon is normally a good student, but has recently gotten a job that takes up a lot of time.
Simon wants to work at a job.
Simon takes a less time-consuming job so that he can focus on his studies.
Simon continues working at the time-consuming job and spends less time on his schoolwork.
Simon gets good grades and is able to attend his preferred college when he graduates.
Simon's grades drop, and he can't get into his preferred college.