u/Apprehensive-Cry801

Is it really bad to accept a job while continuing to interview for others? I’ve been offered a job, full hours but I have other schools I want to try also and would probably choose if the offer was as good. The principal was really nice in the interview and basically asked me not to accept the job just to then turn I down closer to June. Is it the norm to do accept a job even thought you might eventually turn it down or would it be rude to do?