Those who marvel at or question the vacations teachers enjoy are unlikely to have experienced the energy drain that the profession involves. There are inevitably other professions that demand emotional commitment with life-changing implications, but the nature of teaching is such that those in the trenches tend to expend everything they have from break to break. Education as a profession, for those who care deeply, can be all-consuming.
Source: School Culture and the Permission To Say No | maelstrom